Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Differentiating Nephrotic Syndrome from other Diseases
The differential diagnosis of nephrotic syndrome includes other disease with similar findings on physical examination, such as lower extremity edema, or similar clinical findings, such as hypoalbuminemia
Common Differential Diagnoses of Nephrotic Syndrome
Differential Diagnosis |
Characteristic Features
|
Congestive Heart Failure |
- History of cardiovascular disease
- Dyspnea, orthopnea, paroxysmal nocturnal dyspnea, pitting edema, pulmonary edema
- Low ejection fraction on echocardiography
- Elevated brain natriuretic peptide (BNP) levels
- Abnormal heart rate
- Third heart sound
- Lung crackles or wheezing
- Elevated jugular venous pressure
- Cardiomegaly with cardiothoracic ratio on xray > 0.5
|
Liver Cirrhosis |
- Gynecomastia, spider angiomata, testicular atrophy, encephalopathy
- Pitting edema and ascites
- Normal/elevated liver transaminases
- Prolonged INR
- Hypoalbuminemia
- Shrunken liver on imaging
|
Protein Losing Enteropathy |
- Watery diarrhea
- Abdominal pain
- Weight loss
- Hypoalbuminemia and hypoglobulinemia
- Stool alpha-1-antitrypsin
- Imaging and endoscopy findings depend on etiology of enteropathy
|
Malignancy |
- Weight loss, fever, fatigue
- Pitting or non-pitting edema with serous exudation, ascites, pleural effusion, pulmonary edema
- Lymphatic obstruction
|
Lymphedema |
- History of lymph node resection and/or radiation therapy, especially in breast cancer
- Fatigue
- Swollen limb with localized fluid accumulation
- Skin discoloration
|
Venous Insufficiency |
- Painful extremities
- Bluish Skin discoloration
- Edema mostly after prolonged standing
- Stasis dermatitis
|
"Malnutrition' |
- Weight loss, fatigue, irritability, dyspnea, and depression
- Menstrual irregularities
- Poor wound healing and easy bruisibility
- Muscle atrophy and fat wasting
- Dry skin and hair loss
- Anemia
- Hypoalbuminemia
|
References
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