Chronic Abdominal Pain - Differential Diagnosis Algorithm

Constant / Chronic-Fleeting / Post-Prandial

Upper Quadrant:

 • Peptic ulcer disease

 • Gastroesophageal reflux disease (1,2)

 • Chronic pancreatitis

 • Pancreatic tumor

 • Gastric cancer

 • Liver distention (e.g., hepatomegaly, tumour)

 • Splenic (e.g., rare - splenomegaly, abscess)

Lower Quadrant:

 • Crohn’s disease

 • Gynecologic (e.g., endometriosis, tumor)

Any location/diffuse:

 • Ascites (1,2)

 • Neuropathic pain

 • Muscle wall

 • Somatization



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