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{{CMG}}; {{AE}} [[Prashanth Saddala M.B.B.S.]]; Areej Tariq
{{CMG}}; {{AE}} [[Prashanth Saddala M.B.B.S.]]; Areej Tariq


== Overview ==
==[[Bronchospasm overview|Overview]]==


'''Bronchospasm'''  is a difficulty in breathing caused by a sudden constriction of the muscles in the walls of the bronchioles.
==[[Bronchospasm historical perspective|Historical Perspective]]==


==Pathophysiology==
==[[Bronchospasm classification|Classification]]==
Bronchospasm is caused by the release ([[degranulation]]) of substances from [[mast cells]] or [[basophil]]s under the influence of [[anaphylatoxin]]s. The overactivity of the bronchioles' muscle is a result of exposure to a stimulus which under normal circumstances would cause little or no response. The resulting constriction and inflammation causes a narrowing of the airways and an increase in [[mucus]] production; this reduces the amount of [[oxygen]] that is available to the individual causing breathlessness, coughing and [[hypoxia (medical)|hypoxia]].


[[Image:Bb.png|thumb|center|470px|'''Inflamed airways and bronchoconstriction in asthma'''. Airways narrowed as a result of the inflammatory response cause wheezing.]]
==[[Bronchospasm pathophysiology|Pathophysiology]]==


== Causes ==
==[[Bronchospasm causes|Causes]]==


=== Common Causes ===
==[[Bronchospasm differential diagnosis|Differentiating Bronchospasm from other Diseases]]==


*[[Allergens]] such as eggs, milk, [[peanut allergy|peanuts]], [[peanut allergy|walnuts]], tree and other [[peanut allergy|nuts]], fish, especially [[shellfish allergy|shellfish]], soy and wheat; insect bites and stings, especially [[bee stings]]; and other medicines, especially [[penicillin]] and its derivatives.
==[[Bronchospasm epidemiology and demographics|Epidemiology and Demographics]]==
*[[Anaphylaxis]]
*[[Asthma]]
*[[Beta-blockers]]
*[[Bronchitis]]
*Cold air <ref>{{cite journal |doi=10.1080/02673030050009258 |title=Housing Deprivation and Health: A Longitudinal Analysis |year=2000 |last1=Marsh |first1=Alex |last2=Gordon |first2=David |last3=Heslop |first3=Pauline |last4=Pantazis |first4=Christina |journal=Housing Studies |volume=15 |issue=3 |pages=411}}</ref>
*[[COPD]]
*[[Decongestants]]
*[[Endotracheal tube]] placement
*[[LRTI]]
*[[URTI]]


=== Causes by Organ System ===
==[[Bronchospasm risk factors|Risk Factors]]==


{|style="width:80%; height:100px" border="1"
==[[Bronchospasm natural history, complications and prognosis|Natural History, Complications and Prognosis]]==
|style="height:100px"; style="width:25%" border="1" bgcolor="LightSteelBlue" | '''Cardiovascular'''
|style="height:100px"; style="width:75%" border="1" bgcolor="Beige" | [[Churg-Strauss syndrome]], [[Anaphylactic shock]]
|-
|-bgcolor="LightSteelBlue"
| '''Chemical / poisoning'''
|bgcolor="Beige"| [[5-Hydroxyindoleacetic acid]], [[Alanycarb]], [[Aldicarb]], [[Aldoxycarb]], [[Allyxycarb]], [[Amidithion]], [[Aminocarb]], [[Amiton]], [[Anaphylatoxin]], [[Athyl-Gusathion]], [[Azinfosethyl]], [[Azinfos-methyl]], [[Azinophos-methyl]], [[Azinphos]], [[Azinphos-ethyl]], [[Azinphos-methyl]], [[Azinphosmetile]], [[Azothoate]], [[Bendiocarb]], [[Benfuracarb]], [[Benoxafos]], [[Bromophos]], [[Bromophos-ethyl]], [[Snake bite]], [[Bufencarb]], [[Butacarb]], [[Butocarboxim]], [[Butoxcarboxim]], [[Cadusafos]], [[Carbamates]], [[Carbaryl]], [[Carbofuran]], [[Carbophenothion]], [[Carbosulfan]], [[Caterpillar poisoning]], [[Chlorfenvinphos]], [[Chlorine Dioxide]], [[Chloroacetophenone]], [[Chlorobenzylidene Malononitrile]], [[Chloropyrifos]], [[Chlorpyrifos methyl]], [[Cloethocarb]], [[CS gas]], [[Cyanthoate]], [[Decarbofuran]], [[Demeton]], [[Demeton-methyl]], [[Demeton-O]], [[Demeton-O-methyl]], [[Demeton-S-methyl]], [[Demeton-S-methylsulphon]], [[Dialifos]], [[Diazinon]], [[Dichlorvos]], [[Dicresyl]], [[Dicrotophos]], [[Dimetan]], [[Dimethoate]], [[Dimetilan]], [[Dioxacarb]], [[Dioxathion]], [[Disulfoton]], [[EMPC]], [[Endothion]], [[Ethiofencarb]], [[Ethion]], [[Ethoate-methyl]], [[Ethoprophos]], [[Ethyl-guthion]], [[Etrimfos]], [[Eucalyptus oil ]], [[Fenchlorphos]], [[Fenethacarb]], [[Fenitrothion]], [[Fenobucarb]], [[Fensulfothion]], [[Fenthion]], [[Fonophos]], [[Formothion]], [[Furathiocarb]], [[Gonionemus poisoning]], [[Guthion (ethyl)]], [[Heptenophos]], [[Hydrogen sulfide]], [[Hyquincarb]], [[Iodofenphos]], [[Isofenphos]], [[Isoprocarb]], [[Latex allergy]], [[Malathion]], [[Mecarbam]], [[Methacrifos]], [[Methamidophos]], [[Methidathion]], [[Methiocarb]], [[Methomyl]], [[Methylene Diisocyanate]], [[Metiltriazotion]], [[Metolcarb]], [[Mevinphos]], [[Mexacarbate]], [[Monocrotophos]], [[Monosodium glutamate]], [[Nitrilacarb]], [[Nitrogen dioxide]], [[Nitromethane]], [[Omethoate]], [[Organophosphates]], [[Oxamyl]], [[Oxydeprofos]], [[Oxydisulfoton]], [[Parathion]], [[Parathion Methyl]], [[Phenkapton]], [[Phorate]], [[Phosalone]], [[Phosdrin]], [[Phosmet]], [[Phosphamidon]], [[Phoxim]], [[Pirimicarb]], [[Pirimiphos-methyl]], [[Platinosis|Platinum salts]], [[Primiphos methyl]], [[Profenofos]], [[Promacyl]], [[Promecarb]], [[Propoxur]], [[Prothidathion]], [[Prothoate]], [[Pyrimitate]], [[Quinalphos]], [[Quintiofos]], [[Radiocontrast]], [[Scombroid]], [[Smoke inhalation]], [[Sophamide]], [[Sulfotep]], [[Sulfur Trioxide]], [[Tazimcarb]], [[Terbufos]], [[Tetraethyl Pyrophosphate]], [[Tetrodotoxin]], [[Thiocarboxime]], [[Thiodicarb]], [[Thiofanox]], [[Thiometon]], [[Tolclofos methyl]], [[Toluene Diisocyanate]], [[Triazophos]], [[Triazotion]], [[Trifenfos]], [[Trimethacarb]], [[Vamidothion]], [[XMC]], [[Xylylcarb]], [[Analgesic asthma syndrome]]
|-
|-bgcolor="LightSteelBlue"
| '''Dermatologic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Drug Side Effect'''
|bgcolor="Beige"| [[Abciximab]], [[Acetylcysteine]], [[Acetylsalicylic acid]], [[Adenosine]], [[Alemtuzumab]], [[Aspirin]], [[Atenolol]], [[Atracurium]], [[Benzonatate]], [[Beta-blockers]], [[Betahistine]], [[Betaxolol]], [[Bethanechol]], [[Cocaine]], [[Colistin]], [[Cyclizine]], [[Diclofenac]], [[Felbinac]], [[Hydroxyethyl starch]], [[Ibritumomab tiuxetan]], [[Ibuprofen]], [[Indometacin]], [[Ketamine]], [[Ketorolac]], [[Labetalol]], [[Nadolol]], [[Nitrazepam]], [[NSAIDs]], [[Penicillin]], [[Pentamidine]], [[Pilocarpine]], [[Propafenone]], [[Propranolol]], [[Rapacuronium]], [[Streptokinase]], [[Timolol]], [[Zanamivir]], [[Decongestants]], [[Oxymetazoline]], [[Phenylephrine]]
|-
|-bgcolor="LightSteelBlue"
| '''Ear Nose Throat'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Endocrine'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Environmental'''
|bgcolor="Beige"| [[Byssinosis]], [[Pollen allergy]]
|-
|-bgcolor="LightSteelBlue"
| '''Gastroenterologic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Genetic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Hematologic'''
|bgcolor="Beige"| [[Hypereosinophilic syndrome]], [[Mastocytosis]]
|-
|-bgcolor="LightSteelBlue"
| '''Iatrogenic'''
|bgcolor="Beige"| [[Blood transfusion]], [[Bronchial challenge test]], [[Exercise stress testing]]
|-
|-bgcolor="LightSteelBlue"
| '''Infectious Disease'''
|bgcolor="Beige"| [[Pfiesteria piscicida ]], [[Pneumonia]], [[Schistosomiasis]], [[Pulmonary eosinophilia]], [[Pulmonary strongyloidiasis]], [[Viral illness]], [[Visceral larva migrans]], [[Allergic bronchopulmonary aspergillosis]], [[Bronchiolitis]], [[LRTI]], [[URTI]], [[Giardiasis]]
|-
|-bgcolor="LightSteelBlue"
| '''Musculoskeletal / Ortho'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Neurologic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Nutritional / Metabolic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Obstetric/Gynecologic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Oncologic'''
|bgcolor="Beige"| [[Carcinoid tumour ]]
|-
|-bgcolor="LightSteelBlue"
| '''Opthalmologic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Overdose / Toxicity'''
|bgcolor="Beige"| [[Abciximab]], [[Acetylcysteine]], [[Acetylsalicylic acid]], [[Adenosine]], [[Alemtuzumab]], [[Aspirin]], [[Atenolol]], [[Atracurium]], [[Benzonatate]], [[Beta-blockers]], [[Betahistine]], [[Betaxolol]], [[Bethanechol]], [[Cocaine]], [[Colistin]], [[Cyclizine]], [[Diclofenac]], [[Felbinac]], [[Hydroxyethyl starch]], [[Ibritumomab tiuxetan]], [[Ibuprofen]], [[Indometacin]], [[Ketamine]], [[Ketorolac]], [[Labetalol]], [[Nadolol]], [[Nitrazepam]], [[NSAIDs]], [[Penicillin]], [[Pentamidine]], [[Pilocarpine]], [[Propafenone]], [[Propranolol]], [[Rapacuronium]], [[Streptokinase]], [[Timolol]], [[Zanamivir]], [[Decongestants]], [[Oxymetazoline]], [[Phenylephrine]]
|-
|-bgcolor="LightSteelBlue"
| '''Psychiatric'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Pulmonary'''
|bgcolor="Beige"| [[Shaver's disease]], [[Allergic bronchopulmonary aspergillosis]], [[Asthma]], [[Bronchiolitis]], [[Bronchopulmonary dysplasia]], [[Emphysema]], [[Churg-Strauss syndrome]], [[Analgesic asthma syndrome]], [[Pneumonia]], [[Pulmonary strongyloidiasis]], [[Aspiration]], [[Byssinosis]], [[COPD]], [[LRTI]], [[URTI]]
|-
|-bgcolor="LightSteelBlue"
| '''Renal / Electrolyte'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Rheum / Immune / Allergy'''
|bgcolor="Beige"| [[Anaphylaxis]], [[Food allergy]], [[Peanut allergy]], [[Pollen allergy]], [[Latex allergy]], [[Anaphylactic shock]]
|-
|-bgcolor="LightSteelBlue"
| '''Sexual'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Trauma'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Urologic'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Dental'''
|bgcolor="Beige"| No underlying causes
|-
|-bgcolor="LightSteelBlue"
| '''Miscellaneous'''
|bgcolor="Beige"| [[Anaphylaxis]], [[Anaphylactic shock]], [[Aspiration]], [[Exercise induced bronchospasm]], [[Food allergy]], [[Clove cigarette smoking]], [[Near-drowning]], [[Peanut allergies]], [[Carcinoid syndrome]], [[Snake bite]], [[Latex allergy]], [[Pollen allergy]], [[Cocaine]]
|-
|}


=== Causes in Alphabetical Order ===
==Diagnosis==
[[Bronchospasm history and symptoms| History and Symptoms]] | [[Bronchospasm physical examination | Physical Examination]] | [[Bronchospasm laboratory findings|Laboratory Findings]] | [[Bronchospasm chest x ray|Chest X Ray]] |  [[Bronchospasm CT|CT]] | [[Bronchospasm MRI|MRI]] | [[Bronchospasm ultrasound|Ultrasound]] | [[Bronchospasm other imaging findings|Other Imaging Findings]] | [[Bronchospasm other diagnostic studies|Other Diagnostic Studies]]


{{MultiCol}}
==Treatment==
*[[5-Hydroxyindoleacetic acid]]
[[Bronchospasm medical therapy|Medical Therapy]] | [[Bronchospasm surgery|Surgery]] | [[Bronchospasm primary prevention|Primary Prevention]] | [[Bronchospasm secondary prevention|Secondary Prevention]] | [[Bronchospasm cost-effectiveness of therapy|Cost-Effectiveness of Therapy]] | [[Bronchospasm future or investigational therapies|Future or Investigational Therapies]]
*[[Abciximab]]
*[[Acetylcysteine]]
*[[Acetylsalicylic acid]]
*[[Adenosine]]
*[[Alanycarb]]
*[[Aldicarb]]
*[[Aldoxycarb]]
*[[Alemtuzumab]]
*[[Allergic bronchopulmonary aspergillosis]]
*[[Allyxycarb]]
*[[Amidithion]]
*[[Aminocarb]]
*[[Amiton]]
*[[Analgesic asthma syndrome]]
*[[Anaphylactic shock]]
*[[Anaphylatoxin]]
*[[Anaphylaxis]]
*[[Aspiration]]
*[[Aspirin]]
*[[Asthma]]
*[[Atenolol]]
*[[Athyl-Gusathion]]
*[[Atracurium]]
*[[Azinfosethyl]]
*[[Azinfos-methyl]]
*[[Azinophos-methyl]]
*[[Azinphos]]
*[[Azinphos-ethyl]]
*[[Azinphos-methyl]]
*[[Azinphosmetile]]
*[[Azothoate]]
*[[Bendiocarb]]
*[[Benfuracarb]]
*[[Benoxafos]]
*[[Benzonatate]]
*[[Beta-blockers]]
*[[Betahistine]]
*[[Betaxolol]]
*[[Bethanechol]]
*[[Blood transfusion]]
*[[Bromophos]]
*[[Bromophos-ethyl]]
*[[Bronchial challenge test]]
*[[Bronchiolitis]]
*[[Bronchopulmonary dysplasia]]
*[[Bufencarb]]
*[[Butacarb]]
*[[Butocarboxim]]
*[[Butoxcarboxim]]
*[[Byssinosis]]
*[[Cadusafos]]
*[[Carbamates]]
*[[Carbaryl]]
*[[Carbofuran]]
*[[Carbophenothion]]
*[[Carbosulfan]]
*[[Carcinoid syndrome]]
*[[Carcinoid tumour ]]
*[[Caterpillar poisoning]]
*[[Chlorfenvinphos]]
*[[Chlorine Dioxide]]
*[[Chloroacetophenone]]
*[[Chlorobenzylidene Malononitrile]]
*[[Chloropyrifos]]
*[[Chlorpyrifos methyl]]
*[[Churg-Strauss syndrome]]
*[[Cloethocarb]]
*[[Clove cigarette smoking]]
*[[Cocaine]]
*[[Colistin]]
*[[COPD]]
*[[CS gas]]
*[[Cyanthoate]]
*[[Cyclizine]]
*[[Decarbofuran]]
*[[Decongestants]]
{{ColBreak}}
*[[Demeton]]
*[[Demeton-methyl]]
*[[Demeton-O]]
*[[Demeton-O-methyl]]
*[[Demeton-S-methyl]]
*[[Demeton-S-methylsulphon]]
*[[Dialifos]]
*[[Diazinon]]
*[[Dichlorvos]]
*[[Diclofenac]]
*[[Dicresyl]]
*[[Dicrotophos]]
*[[Dimetan]]
*[[Dimethoate]]
*[[Dimetilan]]
*[[Dioxacarb]]
*[[Dioxathion]]
*[[Disulfoton]]
*[[EMPC]]
*[[Emphysema]]
*[[Endothion]]
*[[Ethiofencarb]]
*[[Ethion]]
*[[Ethoate-methyl]]
*[[Ethoprophos]]
*[[Ethyl-guthion]]
*[[Etrimfos]]
*[[Eucalyptus oil ]]
*[[Exercise induced bronchospasm]]
*[[Exercise stress testing]]
*[[Felbinac]]
*[[Fenchlorphos]]
*[[Fenethacarb]]
*[[Fenitrothion]]
*[[Fenobucarb]]
*[[Fensulfothion]]
*[[Fenthion]]
*[[Fonophos]]
*[[Food allergy]]
*[[Formothion]]
*[[Furathiocarb]]
*[[Giardiasis]]
*[[Gonionemus poisoning]]
*[[Guthion (ethyl)]]
*[[Heptenophos]]
*[[Hydrogen sulfide]]
*[[Hydroxyethyl starch]]
*[[Hypereosinophilic syndrome]]
*[[Hyquincarb]]
*[[Ibritumomab tiuxetan]]
*[[Ibuprofen]]
*[[Indometacin]]
*[[Iodofenphos]]
*[[Isofenphos]]
*[[Isoprocarb]]
*[[Ketamine]]
*[[Ketorolac]]
*[[Labetalol]]
*[[Latex allergy]]
*[[LRTI]]
*[[Malathion]]
*[[Mastocytosis]]
*[[Mecarbam]]
*[[Methacrifos]]
*[[Methamidophos]]
*[[Methidathion]]
*[[Methiocarb]]
*[[Methomyl]]
*[[Methylene Diisocyanate]]
*[[Metiltriazotion]]
*[[Metolcarb]]
*[[Mevinphos]]
*[[Mexacarbate]]
*[[Monocrotophos]]
*[[Monosodium glutamate]]
*[[Nadolol]]
*[[Near-drowning]]
*[[Nitrazepam]]
{{ColBreak}}
*[[Nitrilacarb]]
*[[Nitrogen dioxide]]
*[[Nitromethane]]
*[[NSAIDs]]
*[[Omethoate]]
*[[Organophosphates]]
*[[Oxamyl]]
*[[Oxydeprofos]]
*[[Oxydisulfoton]]
*[[Oxymetazoline]]
*[[Parathion]]
*[[Parathion Methyl]]
*[[Peanut allergies]]
*[[Penicillin]]
*[[Pentamidine]]
*[[Pfiesteria piscicida ]]
*[[Phenkapton]]
*[[Phenylephrine]]
*[[Phorate]]
*[[Phosalone]]
*[[Phosdrin]]
*[[Phosmet]]
*[[Phosphamidon]]
*[[Phoxim]]
*[[Pilocarpine]]
*[[Pirimicarb]]
*[[Pirimiphos-methyl]]
*[[Platinosis|Platinum salts]]
*[[Pneumonia]]
*[[Pollen allergy]]
*[[Primiphos methyl]]
*[[Profenofos]]
*[[Promacyl]]
*[[Promecarb]]
*[[Propafenone]]
*[[Propoxur]]
*[[Propranolol]]
*[[Prothidathion]]
*[[Prothoate]]
*[[Pulmonary eosinophilia]]
*[[Pulmonary strongyloidiasis]]
*[[Pyrimitate]]
*[[Quinalphos]]
*[[Quintiofos]]
*[[Radiocontrast]]
*[[Rapacuronium]]
*[[Schistosomiasis]]
*[[Scombroid]]
*[[Shaver's disease]]
*[[Smoke inhalation]]
*[[Snake bite]]
*[[Sophamide]]
*[[Streptokinase]]
*[[Sulfotep]]
*[[Sulfur Trioxide]]
*[[Tazimcarb]]
*[[Terbufos]]
*[[Tetraethyl Pyrophosphate]]
*[[Tetrodotoxin]]
*[[Thiocarboxime]]
*[[Thiodicarb]]
*[[Thiofanox]]
*[[Thiometon]]
*[[Timolol]]
*[[Tolclofos methyl]]
*[[Toluene Diisocyanate]]
*[[Triazophos]]
*[[Triazotion]]
*[[Trifenfos]]
*[[Trimethacarb]]
*[[URTI]]
*[[Vamidothion]]
*[[Viral illness]]
*[[Visceral larva migrans]]
*[[XMC]]
*[[Xylylcarb]]
*[[Zanamivir]]
{{EndMultiCol}}


== Treatment ==
==Case Studies==
 
[[Bronchospasm case study one|Case#1]]
=== Pharmacotherapy ===
 
==== Beta 2 agonists ====
 
Beta 2 [[adrenergic agonist]]s are recommended for bronchospasm.
*Short acting (SABA)
**[[Salbutamol]]
**[[Levosalbutamol]]
*Long acting (LABA)
**[[Formoterol]]
**[[Salmeterol]]
*Others
**[[Dopamine]]
**[[Norepinephrine]]
**[[Epinephrine]]
 
==== Muscarinic Acetylcholine receptor antagonist ====
Since the neurotransmitter, [[acetylcholine]], is known to decrease sympathetic response by slowing the heart rate and constricting the [[smooth muscle tissue]]; ongoing research and successful clinical trials have shown that agents such as [[diphenhydramine]], [[atropine]] and [[Ipratropium bromide]] is known to be effective for treating asthma and COPD-related symptoms.


== References ==
== References ==

Revision as of 18:18, 25 September 2012

Bronchospasm Microchapters

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Overview

Historical Perspective

Classification

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Causes

Differentiating Bronchospasm from other Diseases

Epidemiology and Demographics

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms

Physical Examination

Laboratory Findings

Chest X Ray

CT

MRI

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Case #1

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Prashanth Saddala M.B.B.S.; Areej Tariq

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Bronchospasm from other Diseases

Epidemiology and Demographics

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms | Physical Examination | Laboratory Findings | Chest X Ray | CT | MRI | Ultrasound | Other Imaging Findings | Other Diagnostic Studies

Treatment

Medical Therapy | Surgery | Primary Prevention | Secondary Prevention | Cost-Effectiveness of Therapy | Future or Investigational Therapies

Case Studies

Case#1

References


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