①Borrmann2型進行癌と鑑別が困難で，生検にて診断した細網肉腫の1例

Reticulum Cell Sarcoma Difficult to Differentiate from Advanced Gastric Carcinoma Type Borrmann2

患者：53歳，男．

現病歴：1978年5月の健康診断で胃癌の疑いありといわれた．6月に入院．自覚症状はない．

入院時現症：全身に異常を認めず，表在性リンパ節腫脹もない．

　An asymptomatic 53 year-old man was referred to our department for full investigations of the stomach with possible carcinoma which was shown at. the gastric mass survey. Both a barium meal study and gastrocamera examination well visualized a big, flat elevated tumor with central depression along the lesser curvature of the body. Biopsy specimens from the tumor were reported as showing malignant lymphoma cells, and therefore, he had total gastrectomy done.

　In the resected specimen, there was a big, rather flat elevated tumor with central depression 7×6 cm in size very similar to advanced gastric carcinoma type Borrmann 2. The histological diagnosis of the tumor was reticulum cell sarcoma without secondary deposits in- the regional lymph nodes. The patient is still alive and doing very well up to 21 months after the surgery.

　From radiological point of view, diagnostic signs for this type of malignant lymphoma are a flat mucosal elevation with central depression and rather well-reserved pliability of involved gastric wall.