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=[http://www.wikidoc.org/index.php/Differentiating_(disease_name)_from_other_diseases_page Instructions]=
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==Overview==
 
Differential diagnosis is the process of distinguishing a particular disease or condition from others that present with similar clinical features.
 
A differential diagnostic procedure is generally a systematic diagnostic method used in each individual patient based on their specific condition to identify the presence of a disease entity where multiple alternatives are possible. This method is essentially a process of elimination or at least a process of obtaining information that shrinks the "probabilities" of candidate conditions to negligible levels, by using evidence such as symptoms, patient history, and medical knowledge.
 
The ''Differential Diagnosis Project'' aims to integrate the current body of medical literature in the new era of differential diagnosis into conjoined, systematic pages where the availability of comparing between different possibilities be possible for diagnostician, in conformity with practice guidelines, consensus statements, systematic reviews, and expert opinions.
 
Educational content provided herein is not intended to supplant but supplement clinical judgment. In light of the variability in epidemiological contexts and resources available to diagnose a disease, adjustment in diagnostic approach may be required to optimize patient care.
==Statement of Need==
 
==How Can WikiDoc Meet These Needs?==
 
==How Can You Help WikiDoc Meet These Needs?==
 
==Disclaimer==
All information is provided for educational purposes only. The content provided herein is not intended to supplant but supplement clinical judgment.
 
==References==
{{Reflist|2}}
[[Category:Projects]]
[[Category:Help]]


==Differentiating Legionnaires' disease from other diseases==
{{ddx0|Legionnaires' disease}}
{{ddx1|Acute interstitial pneumonia}}
{{ddx1|Mycoplasma pneumonia}}
{{ddx1|Pneumococcal pneumonia}}
{{ddx1|Pneumocystis carinii pneumonia}}
{{ddx1|Pulmonary embolism}}
{{ddx1|Streptococcal pneumonia}}
{{ddx1|Viral pneumonia}}


==Findings suggestive of Legionnaires' disease==
== A ==
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Abdominal pain'''</strong>
|-
|
* '''''[[Abdominal pain differential diagnosis#Abdominal Pain|Abdominal pain]]'''''
|-
|
* '''''[[Abdominal pain and fever]]'''''
|-
|
* '''''[[Abdominal pain, nausea and vomiting]]'''''
|-
|
* '''''[[Abdominal pain and jaundice]]'''''
|-
|
* '''''[[Abdominal pain and weight loss]]'''''
|-
|
* '''''[[Abdominal pain and constipation]]'''''
|-
|
* '''''[[Abdominal pain and diarrhea]]'''''
|-
|
* '''''[[Abdominal pain and GI bleeding]]'''''
|-
|
* '''''[[Abdominal pain, fever and jaundice|Abdominal pain, fever, and jaundice]]'''''
|-
|
* '''''[[Abdominal pain, fever, nausea and vomiting]]'''''
|-
|
* '''''[[Abdominal pain, fever and diarrhea|Abdominal pain, fever, and diarrhea]]'''''
|-
|
* '''''[[Abdominal pain, fever and constipation]]'''''
|-
|
* '''''[[Abdominal pain, fever and weight loss]]'''''
|-
|
* '''''[[Abdominal pain, fever and GI bleeding]]'''''
|-
|
* '''''[[Abdominal pain, nausea,vomiting and jaundice]]'''''
|-
|
* '''''[[Abdominal pain, nausea,vomiting and weight loss]]'''''
|-
|
* '''''[[Abdominal pain, nausea,vomiting and constipation]]'''''
|-
|
* '''''[[Abdominal pain, nausea,vomiting and diarrhea]]'''''
|-
|
* '''''[[Abdominal pain, nausea,vomiting and GI bleeding|Abdominal pain, nausea, vomiting and GI bleeding]]'''''
|-
|
* '''''[[Abdominal pain, jaundice and weight loss]]'''''
|-
|
* '''''[[Abdominal pain, jaundice and diarrhea]]'''''
|-
|
* '''''[[Abdominal pain, jaundice and GI bleeding]]'''''
|-
|
* '''''[[Abdominal pain,weight loss and constipation]]'''''
|-
|
* '''''[[Abdominal pain,weight loss and diarrhea]]'''''
|-
|
* '''''[[Abdominal pain,weight loss and GI bleeding|Abdominal pain, weight loss and GI bleeding]]'''''
|-
|
* '''''[[Abdominal pain, constipation and diarrhea]]'''''
|-
|
* '''''[[Abdominal pain, constipation and GI bleeding]]'''''
|-
|
* '''''[[Abdominal pain, diarrhea and GI bleeding]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Abnormalities in micturition'''</strong>
|-
|
* '''''[[Abnormalities in micturition]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Abscess'''</strong>
|-
|
* [[Abscess#Differential diagnosis|'''''Abscess''''']]
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Acidosis'''</strong>
|-
|
* '''''[[Metabolic acidosis differential diagnosis|Metabolic acidosis]]'''''
|-
|
* '''''[[High anion gap metabolic acidosis differential diagnosis|High anion gap metabolic acidosis]]'''''
|-
|
* '''''[[High osmolar gap metabolic acidosis differential diagnosis|High osmolar gap metabolic acidosis]]'''''
|-
|
* '''''[[Metabolic acidosis and lactic acidosis differential diagnosis|Metabolic acidosis and lactic acidosis]]'''''
|-
|
* '''''[[Respiratory acidosis differential diagnosis|Respiratory acidosis]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Alkalosis'''</strong>
|-
|
* '''''[[Metabolic alkalosis differential diagnosis|Metabolic alkalosis]]'''''
|-
|
* '''''[[Respiratory alkalosis#Differential Diagnosis|Respiratory alkalosis]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Anemia'''</strong>
|-
|
* '''''[[Anemia#Differentiating Anemia from Other Diseases|Anemia]]'''''
|-
|
* '''''[[Microcytic anemia#Differentiating Microcytic Anemia from Other Diseases|Microcytic anemia]]'''''
|-
|
* '''''[[Normocytic anemia#Differentiating Normocytic Anemia from Other Diseases|Normocytic anemia]]'''''
|-
|
* '''''[[Macrocytic anemia differential diagnosis|Macrocytic anemia]]'''''
|-
|
* '''''[[Hypochromic anemia#Differentiating Hypochromic Anemia from Other Diseases|Hypochromic anemia]]'''''
|-
|
* '''''[[Normochromic anemia#Differentiating Normochromic Anemia from Other Diseases|Normochromic anemia]]'''''
|-
|
* '''''[[Anisochromic anemia#Differentiating Anisochromic Anemia from Other Diseases|Anisochromic anemia]]'''''
|-
|
* '''''[[Hemolytic anemia differential diagnosis|Hemolytic anemia]]'''''
|-
|
* '''''[[Anemia with intrinsic hemolysis#Differentiating Anemia with intrinsic hemolysis from Other Diseases|Anemia with intrinsic hemolysis]]'''''
|-
|
* '''''[[Anemia with extrinsic hemolysis#Differentiating Anemia with extrinsic hemolysis from Other Diseases|Anemia with extrinsic hemolysis]]'''''
|-
|
* '''''[[Anemia with low reticulocytosis#Differentiating Anemia with low reticulocytosis from Other Diseases|Anemia with low reticulocytosis]]'''''
|-
|
* '''''[[Anemia with normal reticulocytosis#Differentiating Anemia with normal reticulocytosis from Other Diseases|Anemia with normal reticulocytosis]]'''''
|-
|
* '''''[[Anemia with high reticulocytosis#Differentiating Anemia with high reticulocytosis from Other Diseases|Anemia with high reticulocytosis]]'''''
|-
|}


===Clinical manifestations===
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
* High grade fever
| <strong>'''Ankylosing spondylitis'''</strong>
* Dry cough
|-
* Progressive dyspnea
|
* Bronchial breath sounds
* [[Ankylosing spondylitis differential diagnosis|'''''Ankylosing spondylitis''''']]
* Adult respiratory distress syndrome
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Arthritis'''</strong>
|-
|
'''''Polyarthritis'''''
|-
|
* '''''[[Polyarthritis]]'''''
|-
|
* [[Polyarthritis with joint swelling|'''''Polyarthritis with joint swelling''''']]
|-
|
* [[Polyarthritis with fever|'''''Polyarthritis with fever''''']]
|-
|
* [[Polyarthritis with weight loss|'''''Polyarthritis with weight loss''''']]
|-
|
* [[Polyarthritis with claudication|'''''Polyarthritis with claudication''''']]
|-
|
* [[Polyarthritis with morning stiffness|'''''Polyarthritis with morning stiffness''''']]
|-
|
* [[Polyarthritis with local erythema|'''''Polyarthritis with local erythema''''']]
|-
|
* [[Polyarthritis with joint swelling and fever|'''''Polyarthritis with joint swelling and fever''''']]
|-
|
* [[Polyarthritis with joint swelling, fever, and weight loss|'''''Polyarthritis with joint swelling, fever, and weight loss''''']]
|-
|
|-
|
'''''Monoarthritis'''''
|-
|
* '''''[[Monoarthritis]]'''''
|-
|
* [[Monoarthritis with joint swelling|'''''Monoarthritis with joint swelling''''']]
|-
|
* [[Monoarthritis with fever|'''''Monoarthritis with fever''''']]
|-
|
* [[Monoarthritis with weight loss|'''''Monoarthritis with weight loss''''']]
|-
|
* [[Monoarthritis with claudication|'''''Monoarthritis with claudication''''']]
|-
|
* [[Monoarthritis with morning stiffness|'''''Monoarthritis with morning stiffness''''']]
|-
|
* [[Monoarthritis with local erythema|'''''Monoarthritis with local erythema''''']]
|-
|
* [[Monoarthritis with joint swelling and fever|'''''Monoarthritis with joint swelling and fever''''']]
|-
|
* [[Monoarthritis with joint swelling, fever, and weight loss|'''''Monoarthritis with joint swelling, fever, and weight loss''''']]
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Ascites'''</strong>
|-
|
* '''''[[Ascites differential diagnosis|Ascites]]'''''
|}
== B ==
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Back pain'''</strong>
|-
|
* [[Back pain differential diagnosis|'''''Back pain''''']]
|-
|
* [[Back pain and bowel or bladder dysfunction|'''''Back pain and bowel or bladder dysfunction''''']]
|-
|
* [[Back pain, bowel or bladder dysfunction and horner's syndrome|'''''Back pain, bowel or bladder dysfunction and horner's syndrome''''']]
|-
|
* [[Back pain and fever|'''''Back pain and fever''''']]
|-
|
* [[Back pain, fever and stiffness|'''''Back pain, fever and stiffness''''']]
|-
|
* [[Back pain and heart murmur|'''''Back pain and heart murmur''''']]
|-
|
* [[Back pain and headache|'''''Back pain and headache''''']]
|-
|
* [[Back pain and horner's syndrome|'''''Back pain and horner's syndrome''''']]
|-
|
* [[Back pain and motor weakness|'''''Back pain and motor weakness''''']]
|-
|
* [[Back pain, motor weakness and sensory deficit|'''''Back pain, motor weakness and sensory deficit''''']]
|-
|
* [[Back pain and nausea and vomiting|'''''Back pain and nausea and vomiting''''']]
|-
|
* [[Back pain and pulse deficit|'''''Back pain and pulse deficit''''']]
|-
|
* [[Back pain and sensory deficit|'''''Back pain and sensory deficit''''']]
|-
|
* [[Back pain and stiffness|'''''Back pain and stiffness''''']]
|-
|
* [[Back pain and syncopy|'''''Back pain and syncopy''''']]
|-
|
* [[Back pain and weight loss|'''''Back pain and weight loss''''']]
|-
|
* [[Back pain red flags|'''''Back pain exhibiting "red flags"''''']]
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Bleeding diathesis'''</strong>
|-
|
* '''''[[Bleeding diathesis#Differentiating Bleeding Disorders from Other Diseases|Bleeding diathesis]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Bronchitis'''</strong>
|-
|
* [[Bronchitis#differential diagnosis|'''''Bronchitis''''']]
|-
|
* [[Bronchitis differential diagnosis|'''''Fever, cough, dyspnea, and wheezing''''']]
|}
== C ==
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Chest pain'''</strong>
|-
|
*'''''[[Chest pain differential diagnosis#Chest Pain|Chest pain]]'''''
|-
|
*'''''[[Chest pain and cough]]'''''
|-
|
*'''''[[Chest pain and fever]]'''''
|-
|
*'''''[[Chest pain and dyspnea]]'''''
|-
|
*'''''[[Chest pain and weight loss]]'''''
|-
|
*'''''[[Chest pain, cough and fever|Chest pain, cough, and fever]]'''''
|-
|
*'''''[[Chest pain, cough and dyspnea|Chest pain, cough, and dyspnea]]'''''
|-
|
*'''''[[Chest pain, cough and weight loss|Chest pain, cough, and weight loss]]'''''
|-
|
*'''''[[Chest pain, fever and dyspnea|Chest pain, fever, and dyspnea]]'''''
|-
|
*'''''[[Chest pain, fever and weight loss|Chest pain, fever, and weight loss]]'''''
|-
|
*'''''[[Chest pain, dyspnea and weight loss|Chest pain, dyspnea, and weight loss]]'''''
|}


===Laboratory abnormalities===
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
* Legionella urinary antigen positive
| <strong>'''Cholestasis'''</strong>
* Alveolar consolidation on chest radiograph
|-
* Lobar consolidation on chest radiograph
|
* '''''[[Primary biliary cirrhosis differential diagnosis|Cholestasis]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Chronic watery diarrhea'''</strong>
|-
|
* '''''[[VIPoma differential diagnosis|Chronic watery diarrhea]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Coagulopathy'''</strong>
|-
|
* '''''[[Coagulopathy#Differential Diagnosis of Coagulopathy|Coagulopathy]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Constipation'''</strong>
|-
|
* '''[[Constipation differential diagnosis|Constipation]]'''
|-
|
* '''''[[Constipation and abdominal pain]]'''''
|-
|
* '''''[[Constipation and anal pain]]'''''
|-
|
* '''''[[Constipation and rectal bleeding]]'''''
|-
|
* '''''[[Constipation and weight loss]]'''''
|-
|
* '''''[[Constipation and tremor]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Cough'''</strong>
|-
|
* '''[[Productive cough]]'''
|-
|
* '''[[Acute cough]]'''
|-
|
* '''[[Chronic cough]]'''
|-
|
* '''[[Cough and hemoptysis]]'''
|-
|
* '''[[Cough and weight loss]]'''
|-
|
* '''[[Cough and fever]]'''
|-
|
* '''[[Cough and wheeze]]'''
|-
|
* '''[[Cough, fever, and hemoptysis]]'''
|-
|
* '''[[Cough, fever, and weight loss]]'''
|-
|
* '''[[Cough, hemoptysis, and weight loss]]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Cyanosis'''</strong>
|-
|
'''Central Cyanosis'''
|-
|
* '''''[[Central cyanosis]]'''''
|-
|
* '''''[[Central cyanosis and dyspnea]]'''''
|-
|
* '''''[[Central cyanosis and fever]]'''''
|-
|
* '''''[[Central cyanosis and chest pain]]'''''
|-
|
* '''''[[Central cyanosis and clubbing]]'''''
|-
|
* '''''[[Central cyanosis, dyspnea, and fever]]'''''
|-
|
* '''''[[Central cyanosis, dyspnea, and chest pain]]'''''
|-
|
* '''''[[Central cyanosis, dyspnea, and clubbing]]'''''
|-
|
* '''''[[Central cyanosis, fever, and chest pain]]'''''
|-
|
* '''''[[Central cyanosis, fever, and clubbing]]'''''
|-
|
* '''''[[Central cyanosis, chest pain, and clubbing]]'''''
|-
|
* '''''[[Central cyanosis, dyspnea, fever, and chest pain]]'''''
|-
|
* '''''[[Central cyanosis, fever, chest pain, and clubbing]]'''''
|-
|
* '''''[[Central cyanosis, dyspnea, fever, and clubbing]]'''''
|-
|
* '''''[[Central cyanosis, dyspnea, fever, chest pain, and clubbing]]'''''
|-
|
|-
|
'''Peripheral Cyanosis'''
|-
|
* '''''[[Peripheral cyanosis]]'''''
|-
|
* '''''[[Peripheral cyanosis and dyspnea]]'''''
|-
|
* '''''[[Peripheral cyanosis and fever]]'''''
|-
|
* '''''[[Peripheral cyanosis and chest pain]]'''''
|-
|
* '''''[[Peripheral cyanosis and clubbing]]'''''
|-
|
* '''''[[Peripheral cyanosis, dyspnea, and fever]]'''''
|-
|
* '''''[[Peripheral cyanosis, dyspnea, and chest pain]]'''''
|-
|
* '''''[[Peripheral cyanosis, dyspnea, and clubbing]]'''''
|-
|
* '''''[[Peripheral cyanosis, fever, and chest pain]]'''''
|-
|
* '''''[[Peripheral cyanosis, fever, and clubbing]]'''''
|-
|
* '''''[[Peripheral cyanosis, chest pain, and clubbing]]'''''
|-
|
* '''''[[Peripheral cyanosis, dyspnea, fever, and chest pain]]'''''
|-
|
* '''''[[Peripheral cyanosis, fever, chest pain, and clubbing]]'''''
|-
|
* '''''[[Peripheral cyanosis, dyspnea, fever, and clubbing]]'''''
|-
|
* '''''[[Peripheral cyanosis, dyspnea, fever, chest pain, and clubbing]]'''''
|}


==Findings suggestive of Acute interstitial pneumonia==
== D ==
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Diabetes insipidus'''</strong>
|-
|
* [[Diabetes insipidus differential diagnosis|'''''Diabetes insipidus''''']]
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Diarrhea'''</strong>
|-
|
* '''''[[Diarrhea#Diarrhea|Diarrhea]]'''''
|-
|
* '''''[[Acute diarrhea differential diagnosis|Acute diarrhea]]'''''
|-
|
* '''''[[Chronic diarrhea differential diagnosis|Chronic diarrhea]]'''''
|-
|
* '''''[[Traveler's diarrhea differential diagnosis|Traveler's diarrhea]]'''''
|-
|
* '''''[[Acute watery diarrhea differential diagnosis|Acute watery diarrhea]]'''''
|-
|
* '''''[[Acute bloody diarrhea differential diagnosis|Acute bloody diarrhea]]'''''
|-
|
* '''''[[Acute fatty diarrhea differential diagnosis|Acute fatty diarrhea]]'''''
|-
|
* '''''[[Chronic watery diarrhea differential diagnosis|Chronic watery diarrhea]]'''''
|-
|
* '''''[[Chronic bloody diarrhea differential diagnosis|Chronic bloody diarrhea]]'''''
|-
|
* '''''[[Chronic fatty diarrhea differential diagnosis|Chronic fatty diarrhea]]'''''
|-
|
* '''''[[Acute diarrhea and fever differential diagnosis|Acute diarrhea and fever]]'''''
|-
|
* '''''[[Chronic diarrhea and fever differential diagnosis|Chronic diarrhea and fever]]'''''
|-
|
* '''''[[Acute diarrhea and abdominal pain differential diagnosis|Acute diarrhea and abdominal pain]]'''''
|-
|
* '''''[[Chronic diarrhea and abdominal pain differential diagnosis|Chronic diarrhea and abdominal pain]]'''''
|-
|
* '''''[[Acute diarrhea and weight loss differential diagnosis|Acute diarrhea and weight loss]]'''''
|-
|
* '''''[[Chronic diarrhea and weight loss differential diagnosis|Chronic diarrhea and weight loss]]'''''
|-
|
* '''''[[Acute diarrhea, fever, and abdominal pain differential diagnosis|Acute diarrhea, fever, and abdominal pain]]'''''
|-
|
* '''''[[Chronic diarrhea, fever, and abdominal pain differential diagnosis|Chronic diarrhea, fever, and abdominal pain]]'''''
|-
|
* '''''[[Acute diarrhea, abdominal pain, and weight loss differential diagnosis|Acute diarrhea, abdominal pain, and weight loss]]'''''
|-
|
* '''''[[Chronic diarrhea, abdominal pain, and weight loss differential diagnosis|Chronic diarrhea, abdominal pain, and weight loss]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Dumping syndrome'''</strong>
|-
|
* '''''[[Nausea, vomiting, diarrhea, fatigue and abdominal pain]]'''''
|-
|
* '''''[[Post-vagotomy complications]]'''''
|-
|
* '''''[[Early dumping syndrome symptoms]]'''''
|-
|
* '''''[[Late dumping syndrome symptoms]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Dyspnea'''</strong>
|-
|
* '''''[[Dyspnea and Fever|Dyspnea and fever]]'''''
|-
|
* '''''[[Dyspnea and chest pain]]'''''
|-
|
* '''''[[Dyspnea and Cough|Dyspnea and cough]]'''''
|-
|
* '''''[[Dyspnea and Jugular vein distention|Dyspnea and jugular vein distention]]'''''
|-
|
* '''''[[Dyspnea and Cyanosis or Clubbing|Dyspnea and cyanosis or clubbing]]'''''
|-
|
* '''''[[Dyspnea and Loss of consciousness or Agitation|Dyspnea and loss of consciousness or agitation]]'''''
|-
|
* '''''[[Dyspnea with Normal auscultation|Dyspnea with normal auscultation]]'''''
|-
|
* '''''[[Dyspnea with Stridor|Dyspnea with stridor]]'''''
|-
|
* '''''[[Dyspnea with wheezing]]'''''
|-
|
* '''''[[Dyspnea with Crackle|Dyspnea with crackle]]'''''
|-
|
* '''''[[Dyspnea with rhonchi]]'''''
|-
|
* [[Dyspnea, Fever, and Cough|'''''Dyspnea, fever,''''' '''''and cough''''']]
|-
|
* [[Dyspnea, Fever, and Chest pain|'''''Dyspnea, fever,''''' '''''and chest pain''''']]
|-
|
* '''''[[Dyspnea cough cyanosis clubbing|Dyspnea, cough, and cyanosis or clubbing]]'''''
|-
|
* [[Dyspnea, Fever, Chest pain, Cough, and Cyanosis or Clubbing|'''''Dyspnea, fever,''''' '''''chest pain,''''' '''''cough,''''' '''''and cyanosis or clubbing''''']]
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Dyspepsia'''</strong>
|-
|
* '''[[Dyspepsia differential diagnosis|Dyspepsia]]'''
|-
|
* '''[[Dyspepsia differential diagnosis|Chronic nausea and vomiting]]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Dysphagia'''</strong>
|-
|
* '''''[[Dysphagia differential diagnosis#Dysphagia|Dysphagia]]'''''
|-
|
* '''''[[Dysphagia and weight loss]]'''''
|-
|
* '''''[[Dysphagia and heartburn]]'''''
|-
|
* '''''[[Dysphagia, weight loss and heartburn]]'''''
|}
== E ==
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Electrolyte imbalance'''</strong>
|-
|
* '''''[[Hyperkalemia differential diagnosis|Hyperkalemia]]'''''
|-
|
* '''''[[Differentiating etiologies of Hypernatremia|Hypernatremia]]'''''
|-
|
* '''''[[Hypokalemia differential diagnosis|Hypokalemia]]'''''
|-
|
* '''''[[Hyponatremia differential diagnosis|Hyponatremia]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Esophageal web'''</strong>
|-
|
* '''[[Esophageal webs#Differentiating esophageal webs from other diseases|''Esophageal web'']]'''
|}
== F ==


===Clinical manifestations===
== G ==
* Dry cough
* Progressive dyspnea
* Adult respiratory distress syndrome


===Laboratory abnormalities===
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
* Disseminated consolidation on chest radiograph
| <strong>'''Gastrointestinal bleeding'''</strong>
* Interstitial infiltrate on chest radiograph
|-
* Increased uptake on Gallium scan
|
* '''[[Gastrointestinal bleeding#Differentiating Gastrointestinal Bleeding from other Diseases|''Gastrointestinal bleeding'']]'''
|-
|
* '''''[[Upper gastrointestinal bleeding differential diagnosis|Upper Gastrointestinal bleeding]]'''''
|-
|
* '''''[[Lower gastrointestinal bleeding differential diagnosis|Lower Gastrointestinal bleeding]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Gastroesophageal reflux disease (GERD)'''</strong>
|-
|
* '''[[Gastroesophageal reflux disease differential diagnosis|''Nausea, vomiting, and heartburn'']]'''
|-
|
* '''[[Gastroesophageal reflux disease differential diagnosis|''Dysphagia, odynophagia, and heart burn'']]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Glomerular disease'''</strong>
|-
|
* '''''[[Glomerular disease#Differential Diagnosis|Glomerular disease]]'''''
|}
== H ==


==Findings suggestive of Mycoplasma pneumonia==
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Hemoptysis'''</strong>
|-
|
* '''[[Hemoptysis differential diagnosis|''Hemoptysis and cough'']]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Hyperkalemia'''</strong>
|-
|
* '''''[[Hyperkalemia differential diagnosis|Hyperkalemia]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Hypernatremia'''</strong>
|-
|
* '''''[[Differentiating etiologies of Hypernatremia|Hypernatremia]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Hyperventilation'''</strong>
|-
|
* '''[[Hyperventilation#Differentiating Hyperventilation from other Diseases|''Hyperventilation'']]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Hypoglycemia'''</strong>
|-
|
* '''''[[Hypoglycemia differential diagnosis|Hypoglycemia]]'''''
|-
|
* '''''[[Autonomic hyperactivity symptoms]]'''''
|-
|
* '''''[[Neurological symptoms in neonates]]'''''
|-
|
* '''''[[Coma and consciousness alterations]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Hypokalemia'''</strong>
|-
|
* '''''[[Hypokalemia differential diagnosis|Hypokalemia]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Hyponatremia'''</strong>
|-
|
* '''''[[Hyponatremia differential diagnosis|Hyponatremia]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Hypoventilation'''</strong>
|-
|
* '''[[Hypoventilation#Differentiating hypoventilation from other Diseases|''Hypoventilation'']]'''
|}
== I ==


===Clinical manifestations===
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
* Dry cough
| <strong>'''Insulinoma'''</strong>
* Pleuritic chest pain
|-
* Inflammed, opaque, hypomobile tympanic membrane
|
* Bronchial breath sounds
* '''''[[Insulinoma differential diagnosis|Hypoglycemia]]'''''
|}
== J ==


===Laboratory abnormalities===
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
* Lymphocytosis
| <strong>'''Jaundice'''</strong>
* Cold agglutinins positive
|-
* Alveolar consolidation on chest radiograph
|
* Interstitial infiltrate on chest radiograph
* '''''[[Jaundice differential diagnosis|Jaundice]]'''''
* Lobar consolidation on chest radiograph
|-
|
* '''''[[Jaundice and RUQ pain]]'''''
|-
|
* '''''[[Jaundice and pruritis]]'''''
|-
|
* '''''[[Jaundice and fever]]'''''
|-
|
* '''''[[Jaundice, fever, and RUQ pain]]'''''
|-
|
* '''''[[Jaundice, pruritis and RUQ pain]]'''''
|}
== K ==
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Kaposi's sarcoma'''</strong>
|-
|
* '''''[[Kaposi's sarcoma differential diagnosis|Kaposi's sarcoma]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Kidney stone'''</strong>
|-
|
* '''[[Kidney stone differential diagnosis|''Kidney stone'']]'''
|}
== L ==
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Leukocytosis'''</strong>
|-
|
* '''[[Leukocytosis#Differentiating Leukocytosis from Other Diseases|''Leukocytosis'']]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Low back pain'''</strong>
|-
|
* '''[[Low back pain differential diagnosis|''Low back pain'']]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Lung cancer'''</strong>
|-
|
* '''[[Lung cancer differential diagnosis|''Lung cancer'']]'''
|-
|
* '''[[Lung cancer differential diagnosis#Differential Diagnosis|''Cavitary lung lesion'']]'''
|}
== M ==


==Findings suggestive of Pneumococcal pneumonia==
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Malabsorption'''</strong>
|-
|
* '''[[Malabsorption differential diagnosis|''Malabsorption'']]'''
|}


===Clinical manifestations===
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
* Hemoptysis
| <strong>'''Menetrier's disease'''</strong>
* Fine rales
|-
* Pleuritic chest pain
|
* Increased breath sounds
* '''''[[Menetrier's disease#Differentiating Ménétrier's disease from Other Diseases|Menetrier's disease]]'''''
* Bronchial breath sounds
|}
* Dullness on chest percussion
* Purulent sputum
* Shallow respiration
* Pectoriloquy
* Increased tactile fremitus
* Productive cough
* Egophony
* High grade fever


===Laboratory abnormalities===
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
* Pleural effusion (exudative)
| <strong>'''Metabolic acidosis'''</strong>
* Respiratory alkalosis
|-
* Parenchymal hyperlucency on chest radiograph
|
* Increased uptake on Gallium scan
* '''''[[Metabolic acidosis differential diagnosis|Metabolic acidosis]]'''''
* Unilateral diaphragm elevation on chest radiograph
|-
* Alveolar consolidation on chest radiograph
|
* Lobar consolidation on chest radiograph
* '''''[[High anion gap metabolic acidosis differential diagnosis|High anion gap metabolic acidosis]]'''''
* Gram positive diplococci on sputum Gram stain
|-
|
* '''''[[High osmolar gap metabolic acidosis differential diagnosis|High osmolar gap metabolic acidosis]]'''''
|-
|
* '''''[[Metabolic acidosis and lactic acidosis differential diagnosis|Metabolic acidosis and lactic acidosis]]'''''
|}


==Findings suggestive of Pneumocystis carinii pneumonia==
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Metabolic alkalosis'''</strong>
|-
|
* '''''[[Metabolic alkalosis differential diagnosis|Metabolic alkalosis]]'''''
|}


===Clinical manifestations===
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
* Immunosuppressive state
| <strong>'''Muscle weakness'''</strong>
* Mediastinal emphysema
|-
* Subcutaneous emphysema
|
* Hacking cough
* '''[[Myopathy#Differential Diagnosis of Muscle Weakness|''Muscle weakness'']]'''
* Progressive dyspnea
|-
|
* '''[[Distal muscle weakness|''Distal muscle weakness'']]'''
|-
|
* '''[[Inflammatory myopathy#Differentiating Inflammatory Myopathy from other Diseases|''Inflammatory myopathy'']]'''
|-
|
* '''[[Muscle weakness and Fever|''Muscle weakness and Fever'']]'''
|-
|
* '''[[Muscle weakness and Myalgia|''Muscle weakness and Myalgia'']]'''
|-
|
* '''[[Muscle weakness and Gait abnormality|''Muscle weakness and Gait abnormality'']]'''
|-
|
* '''[[Muscle weakness and Neuropathy|''Muscle weakness and Neuropathy'']]'''
|-
|
* '''[[Muscle weakness and stiffness|''Muscle weakness and stiffness'']]'''
|-
|
* '''[[Muscle weakness and Myoglobinuria|''Muscle weakness and Myoglobinuria'']]'''
|-
|
* '''[[Muscle weakness and Atrophy|''Muscle weakness and Atrophy'']]'''
|-
|
* '''[[Proximal muscle weakness|''Proximal muscle weakness'']]'''
|}
== N ==


===Laboratory abnormalities===
== O ==
* Respiratory alkalosis
* Serum beta-D-glucan elevated
* Alveolar consolidation on chest radiograph
* Lobar consolidation on chest radiograph
* Interstitial infiltrate on chest radiograph


==Findings suggestive of Pulmonary embolism==
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Obstructive lung disease'''</strong>
|-
|
* '''[[Obstructive lung disease#Differentiating Obstructive Lung Disease from other Diseases|''Obstructive lung disease'']]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Oliguria'''</strong>
|-
|
* '''[[Oliguria differential diagnosis|''Oliguria'']]'''
|-
|
* '''''[[Oliguria with thirst]]'''''
|-
|
* '''''[[Oliguria with muscle weakness]]'''''
|-
|
* '''''[[Oliguria with vomiting]]'''''
|-
|
* '''''[[Oliguria with diarrhea]]'''''
|-
|
* '''''[[Oliguria with tachypnea]]'''''
|-
|
* '''''[[Oliguria with edema]]'''''
|-
|
* '''''[[Oliguria with fatigue and thirst]]'''''
|-
|
* '''''[[Oliguria with fatigue and tachypnea]]'''''
|-
|
* '''''[[Oliguria with fatigue and edema]]'''''
|-
|
* '''''[[Oliguria with fatigue, vomiting, and diarrhea]]'''''
|-
|
* '''''[[Oliguria with fatigue, somatic pain, vomiting, and diarrhea]]'''''
|-
|
* '''''[[Oliguria with fatigue, somatic pain, vomiting, diarrhea, and edema]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Oral lesions'''</strong>
|-
|
* '''[[Oral lesions|''Oral ulcer'']]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Osteoporosis'''</strong>
|-
|
* '''[[Osteoporosis differential diagnosis|''Osteoporosis'']]'''
|}
== P ==
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Pancytopenia'''</strong>
|-
|
* [[Pancytopenia#Differentiating Pancytopenia from Other Diseases|'''''Pancytopenia''''']]
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Plasma cell disorder'''</strong>
|-
|
* '''''[[Plasma cell disorder#Differential Diagnosis|Plasma cell disorder]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Pharyngitis'''</strong>
|-
|
* [[Pharyngitis differential diagnosis|'''''Pharyngitis''''']]
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Polycystic kidney disease'''</strong>
|-
|
* '''''[[Polycystic kidney disease differentiating polycystic kidney disease from other diseases|Polycystic kidney disease]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Polycythemia'''</strong>
|-
|
* '''[[Polycythemia differential diagnosis|''Polycythemia'']]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Polycythemia vera'''</strong>
|-
|
* '''[[Polycythemia vera differential diagnosis|''Polycythemia vera'']]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Polymyalgia rheumatica'''</strong>
|-
|
* '''[[Differentiating Polymyalgia rheumatica from other diseases|''Fatigue and chronic pain'']]'''
|-
|
* '''[[Differentiating Polymyalgia rheumatica from other diseases|''Muscle pain'']]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Polymyositis'''</strong>
|-
|
* [[Polymyositis#Differentiating Polymyositis from other Diseases|'''''Polymyositis''''']]
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Portal hypertension'''</strong>
|-
|
* '''''[[Portal hypertension differential diagnosis|Portal hypertension]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Psittacosis'''</strong>
|-
|
* '''''[[Psittacosis differential diagnosis|Psittacosis]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Pyloric stenosis'''</strong>
|-
|
* '''[[Pyloric stenosis differential diagnosis|''Pyloric stenosis'']]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Pyuria'''</strong>
|-
|
* '''[[Pyuria#Pyuria Differential Diagnosis|''Pyuria'']]'''
|}
== Q ==


===Clinical manifestations===
== R ==
* Calf pain / swelling
* Decreased pulse pressure
* Dyspnea with normal chest X-ray
* Hemoptysis
* Hyperventilation
* Immobility
* Increased pulmonic component of heart sound
* Pleuritic chest pain
* Prior DVT
* Pulmonary hypertension
* Right ventricular heave
* Right ventricular hypertrophy
* Right-to-left shunt
* Substernal chest pain
* Tachypnea
* Thrombophlebitis
* Unilateral lower extremity edema
* Venous stasis


===Laboratory abnormalities===
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
* Atrial fibrillation
| <strong>'''Reactive arthritis'''</strong>
* Bone fracture
|-
* Atelectasis on chest radiograph
|
* Lobar consolidation on chest radiograph
* '''[[Differentiating reactive arthritis from other diseases|''Arthralgia'']]'''
* Prominent pulmonary artery on chest radiograph
|-
* Hampton's hump on chest radiograph
|
* D-dimer elevated
* '''[[Differentiating reactive arthritis from other diseases|''Rash and Arthritis'']]'''
* Right ventricular enlargement on echocardiography
|}
* Thrombus on echocardiography
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
* Hypocapnia
| <strong>'''Respiratory acidosis'''</strong>
* Hypoxia
|-
* Segmental perfusion defect on lung scan
|
* V/Q mismatch on lung scan
* '''''[[Respiratory acidosis differential diagnosis|Respiratory acidosis]]'''''
* Pleural effusion (exudative / bloody)
|}
* RVH on ECG
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
* Right axis deviation on ECG
| <strong>'''Respiratory alkalosis'''</strong>
|-
|
* '''''[[Respiratory alkalosis#Differential Diagnosis|Respiratory alkalosis]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Respiratory failure'''</strong>
|-
|
* '''[[Respiratory failure differential diagnosis|''Respiratory failure'']]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Restrictive lung disease'''</strong>
|-
|
* '''[[Restrictive lung disease#Differentiating Restrictive Lung Disease from other Diseases|''Dyspnea, cough, hemoptysis, and fever'']]'''
|}
== S ==


==Findings suggestive of Streptococcal pneumonia==
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Salivary gland swelling'''</strong>
|-
|
* '''''[[Sialolithiasis differential diagnosis|Salivary gland swelling]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''SAPHO syndrome'''</strong>
|-
|
* '''[[SAPHO syndrome#Differential diagnosis|''Bone pain, edema, and erythema'']]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Sialolithiasis'''</strong>
|-
|
* '''''[[Sialolithiasis differential diagnosis|Salivary gland swelling]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Splenomegaly'''</strong>
|-
|
* [[Splenomegaly#Differentiating Splenomegaly from Other Diseases|'''''Splenomegaly''''']]
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Stomach cancer'''</strong>
|-
|
* [[Stomach cancer differential diagnosis|'''''Abdominal pain, weight loss, and loss of appetite''''']]
|}
== T ==
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Thrombocytopenia'''</strong>
|-
|
* '''[[Thrombocytopenia differential diagnosis|''Thrombocytopenia'']]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Thrombocytosis'''</strong>
|-
|
* '''[[Thrombocytosis differential diagnosis|''Thrombocytosis'']]'''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Tongue cancer'''</strong>
|-
|
* '''[[Tongue cancer differential diagnosis|''Tongue cancer'']]'''
|}
== U ==


===Clinical manifestations===
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
* Pectoriloquy
| <strong>'''Urinary incontinence'''</strong>
* Bronchial breath sounds
|-
* Empyema
|
* Erythema nodosum
* '''[[Urinary incontinence differential diagnosis|''Urge incontinence'']]'''
* Purulent sputum
|-
* Shallow respiration
|
* Increased tactile fremitus 
* '''[[Urinary incontinence differential diagnosis|''Stress incontinence'']]'''
* Pleuritic chest pain
|-
* Egophony
|
* '''[[Urinary incontinence differential diagnosis|''Functional incontinence'']]'''
|-
|
* '''[[Urinary incontinence differential diagnosis|''Overflow incontinence'']]'''
|-
|
* '''[[Urinary incontinence differential diagnosis|''Mixed incontinence'']]'''
|}
== V ==
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''Vasculitis'''</strong>
|-
|
'''Large-sized vessel vasculitis'''
|-
|
* '''[[Large-sized vessel vasculitis|''Large-sized vessel vasculitis'']]'''
|-
|
* '''''[[Large-sized vessel vasculitis with weight loss]]'''''
|-
|
* '''''[[Large-sized vessel vasculitis with arthralgia]]'''''
|-
|
* '''''[[Large-sized vessel vasculitis with claudication]]'''''
|-
|
* '''''[[Large-sized vessel vasculitis with hypertension]]'''''
|-
|
|-
|
'''Medium-sized vessel vasculitis'''
|-
|
* '''[[Medium-sized vessel vasculitis|''Medium-sized vessel vasculitis'']]'''
|-
|
* '''''[[Medium-sized vessel vasculitis with headache]]'''''
|-
|
* '''''[[Medium-sized vessel vasculitis with fever]]'''''
|-
|
* '''''[[Medium-sized vessel vasculitis with weight loss]]'''''
|-
|
* '''''[[Medium-sized vessel vasculitis with arthralgia]]'''''
|-
|
* '''''[[Medium-sized vessel vasculitis with claudication]]'''''
|-
|
* '''''[[Medium-sized vessel vasculitis with bruit]]'''''
|-
|
* '''''[[Medium-sized vessel vasculitis with hypertension]]'''''
|-
|
* '''''[[Medium-sized vessel vasculitis with focal neurological sign]]'''''
|-
|
* '''''[[Medium-sized vessel vasculitis with headache, fever, and focal neurological sign]]'''''
|-
|
* '''''[[Medium-sized vessel vasculitis with headache, fever, weight loss, and arthralgia]]'''''
|-
|
* '''''[[Medium-sized vessel vasculitis with headache, fever, weight loss, arthralgia, claudication, bruit, and hypertension]]'''''
|-
|
|-
|
'''Small-sized vessel vasculitis'''
|-
|
* '''''[[Small-sized vessel vasculitis]]'''''
|-
|
* '''''[[Small-sized vessel vasculitis with headache]]'''''
|-
|
* '''''[[Small-sized vessel vasculitis with fever]]'''''
|-
|
* '''''[[Small-sized vessel vasculitis with weight loss]]'''''
|-
|
* '''''[[Small-sized vessel vasculitis with arthralgia]]'''''
|-
|
* '''''[[Small-sized vessel vasculitis with claudication]]'''''
|-
|
* '''''[[Small-sized vessel vasculitis with hypertension]]'''''
|-
|
* '''''[[Small-sized vessel vasculitis with focal neurological sign]]'''''
|-
|
* '''''[[Small-sized vessel vasculitis with fever and headache]]'''''
|-
|
* '''''[[Small-sized vessel vasculitis with fever and weight loss]]'''''
|-
|
* '''''[[Small-sized vessel vasculitis with fever and arthralgia]]'''''
|-
|
* '''''[[Small-sized vessel vasculitis with fever and claudication]]'''''
|-
|
* '''''[[Small-sized vessel vasculitis with fever and focal neurological sign]]'''''
|-
|
* '''''[[Small-sized vessel vasculitis with fever, weight loss, and arthralgia]]'''''
|-
|
* '''''[[Small-sized vessel vasculitis with fever, weight loss, and focal neurological sign]]'''''
|-
|
* '''''[[Small-sized vessel vasculitis with fever, headache, weight loss, arthralgia, and claudication]]'''''
|-
|
* '''''[[Small-sized vessel vasculitis with fever, headache,weight loss, arthralgia, claudication, hypertension, and focal neurological sign]]'''''
|-
|
|-
|
'''Variable-sized vessel vasculitis'''
|-
|
* '''[[Variable-sized vessel vasculitis|''Variable-sized vessel vasculitis'']]'''
|-
|
|-
|
'''Single organ vasculitis'''
|-
|
* '''''[[Single organ vasculitis]]'''''
|}
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
| <strong>'''VIPoma'''</strong>
|-
|
* '''''[[VIPoma differential diagnosis|Chronic watery diarrhea]]'''''
|}
== W ==


===Laboratory abnormalities===
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
* Respiratory alkalosis
| <strong>'''Wheezing'''</strong>
* Pleural effusion (exudative)
|-
* Increased uptake on Gallium scan
|
* Gram-positive cocci in chains on sputum Gram stain
* '''[[Wheeze differential diagnosis|''Wheezing'']]'''
* Alveolar consolidation on chest radiograph
|-
* Lobar consolidation on chest radiograph
|
* '''[[Wheeze and cough|''Wheezing and cough'']]'''
|-
|
* '''[[Wheeze and fever|''Wheezing and fever'']]'''
|-
|
* '''[[Wheeze and slurred speech|''Wheezing and slurred speech'']]'''
|-
|
* [[Cough and fever|'''''Wheezing, cough, and fever''''']]
|}
== X ==


==Findings suggestive of Viral pneumonia==
== Y ==


===Clinical manifestations===
== Z ==
* Pleuritic chest pain
* Bronchial breath sounds
* Influenza
* Fine rales
* Bronchovesicular breath sounds


===Laboratory abnormalities===
{| class="wikitable mw-collapsible mw-collapsed" role="presentation"
* Lymphocytosis
| <strong>'''Zenker's diverticulum'''</strong>
* Respiratory alkalosis
|-
* Lobar consolidation on chest radiograph
|
* Interstitial infiltrate on chest radiograph
* '''[[Zenker's diverticulum differential diagnosis|''Zenker's diverticulum'']]'''
|}

Latest revision as of 17:15, 1 February 2019

Differential diagnosis project
Introduction
Guide
Template
Topics
Alphabetic Order

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Differential diagnosis is the process of distinguishing a particular disease or condition from others that present with similar clinical features.

A differential diagnostic procedure is generally a systematic diagnostic method used in each individual patient based on their specific condition to identify the presence of a disease entity where multiple alternatives are possible. This method is essentially a process of elimination or at least a process of obtaining information that shrinks the "probabilities" of candidate conditions to negligible levels, by using evidence such as symptoms, patient history, and medical knowledge.

The Differential Diagnosis Project aims to integrate the current body of medical literature in the new era of differential diagnosis into conjoined, systematic pages where the availability of comparing between different possibilities be possible for diagnostician, in conformity with practice guidelines, consensus statements, systematic reviews, and expert opinions.

Educational content provided herein is not intended to supplant but supplement clinical judgment. In light of the variability in epidemiological contexts and resources available to diagnose a disease, adjustment in diagnostic approach may be required to optimize patient care.

Statement of Need

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Disclaimer

All information is provided for educational purposes only. The content provided herein is not intended to supplant but supplement clinical judgment.

References


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