ABSTRACT
This article is the case report of primary gastric malignant lymphoma which was diagnosed by laparatomy. A 24-year-old male was admitted because of epigastric pain and general weakness, He was taken by gastrofiberoscopy with biopsy, upper gastrointestinal series, ultrasonogram, and abdominal computerized tomogram. Endoseopic pieture demonstrated whitish to yellowish exudate in the ulcer base and the surround.ing mucosal elevation in the poterior wall of the antrum and lower body. In the X-ray and endoseapic findings, the lesion was considered as Borrmann III type carcinoma, but on the second endoscopic biopsy gastric lymphoma was suapected. Reaected stomach revealed an irregular ulceration with the surrounding mucosal elevation with a size of 5X7X10cm at the pasterior wall of the antrum. Bridging folds were observed on the surrounding elevated mucosa of the lesion. Histologically, the lesion was diagnosed as malignant lymphoma (poorly differentiated lymphocytic).