Pseudotumor Gastric AL Type Amyloidosis Mimicking Malignancy. A Case Report

摘要

Amyloidosis is an abnormal extracellular deposition of insoluble proteins, which is associated with an involvement of the gastrointestinal tract in 50 to 70% of cases. In primary amylo?dosis (light chain amylo?dosis), localized gastric involvement is a rare finding which can mimick malignancy. We report the case of a 75-year-old woman, admitted with upper digestive outlet obstruction and generalized edema. Upper endoscopy revealed fundic burgeoning ulcerative process. Gastric biopsy concluded to AL type amyloidosis and no malignant tumor was found. Etiological treatment consisted of melphalan and prednisone every 6 weeks. The patient improved from her gastric complaints, and edema. The current decline is 24 months.