title: Systemic mastocytosis with review of gastrointestinal manifestations.
abstract: A 63-year-old man presented with fever, splenomegaly, steatorrhea, diarrhea, and weight loss. A tissue diagnosis of systemic mastocytosis was made. This case is unusual in that diarrhea and steatorrhea were present in the absence of skin lesions and because fever was a prominent symptom. Thus, systemic mastocytosis should be included in the differential diagnosis of intestinal malabsorption even when the skin shows no abnormalities. The gastrointestinal manifestations of systemic mastocytosis are reviewed.
mesh_terms: D001835:Body Weight; D002446:Celiac Disease / Q000209:etiology*; D003937:Diagnosis, Differential; D003967:Diarrhea / Q000209:etiology*; D005334:Fever / Q000209:etiology; D006801:Humans; D007408:Intestinal Absorption; D008286:Malabsorption Syndromes / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D013163:Splenomegaly / Q000209:etiology; D014582:Urticaria Pigmentosa / Q000150:complications* / Q000175:diagnosis