Differential Diagnosis for Collapsed/Underdistended Gastric Body
Single Most Likely Diagnosis
- Gastric outlet obstruction: This is the most likely diagnosis because a physical blockage or obstruction at the pylorus can prevent the stomach from filling with food and fluids, leading to a collapsed or underdistended appearance on imaging.
Other Likely Diagnoses
- Pylorospasm: Spasm of the pyloric muscle can mimic the appearance of an obstruction, leading to a similar underdistended gastric body.
- Gastritis: Inflammation of the stomach lining can cause the stomach to appear underdistended due to decreased motility and secretions.
- Postoperative state: After gastric surgery, the stomach may appear underdistended due to changes in gastric anatomy and motility.
Do Not Miss Diagnoses
- Gastric cancer: Although less likely, gastric cancer can cause obstruction or infiltration of the gastric wall, leading to underdistension. Missing this diagnosis could have severe consequences.
- Gastric volvulus: A twisting of the stomach can cause obstruction and underdistension, requiring prompt surgical intervention to prevent ischemia and necrosis.
- Mesenteric ischemia: Reduced blood flow to the stomach can cause underdistension and ischemic changes, which can be life-threatening if not addressed promptly.
Rare Diagnoses
- Scleroderma: This autoimmune disorder can cause fibrosis and decreased motility of the stomach, leading to underdistension.
- Amyloidosis: Deposition of amyloid proteins in the stomach wall can cause decreased motility and underdistension.
- Eosinophilic gastritis: A rare inflammatory condition characterized by eosinophilic infiltration of the stomach wall, which can cause underdistension and other gastric symptoms.