Pyloric stenosis differential diagnosis
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mohamadmostafa Jahansouz M.D.[2]
Overview
- Infantile hypertrophic pyloric stenosis must be differentiated from other diseases that cause vomiting, poor feeding, dehydration, such as adrenal insufficiency, gastroenteritis, UTI, and acute renal failure.
Differentiating Pyloric Stenosis from Other Diseases
Pyloric stenosis must be differentiated from other diseases, such as:
- Adrenal insufficiency
- Gastroenteritis
- Inborn errors of metabolism
- Urinary tract infections and Pyelonephritis
- Acute renal failure
Preferred Table
| Diseases | History and Symptoms | Physical Examination | Laboratory Findings | Other Findings | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Finding
1 |
Finding 2 | Finding 3 | Finding
4 |
Dehydration | Physical Finding 2 | Physical Finding 3 | Physical Finding 4 | Hypokalemia | Acidosis or Alkalosis | Hypochloremia or hyperchloremia | ||
| Infantile pyloric stenosis | ++ | + | Alkalosis | Hypochloremia | ||||||||
| Adrenal insufficency | + | Hyperkalemia | Acidosis | Hypochloremia | ||||||||
| Gastroenteritis | ++ | + | Acidosis | Hypochloremia | ||||||||
| UTI | +/- | +/- | Acidosis or alkalosis | Hypochloremia or hyprchloremia | ||||||||
| Acute renal failure | + | Hyperkalemia | Acidosis | Hyperchloremia | ||||||||