A CASE OF T CELL MALIGNANT LYMPHOMA OF THE COLON WHICH WAS DETECTED AS THE RESULTS OF THE EXAMINATION OF EYELID TUMOR

Abstract

A 46-year-old man visited our hospital with a complaint of right upper eyelid tumor of soybean size. The tumor was resected and it's histological findings was suspicious of malignant lymphoma. Therefore, a systemic examination was performed to search the origin of the eyelid tumor. Barium enema and colonoscopic findings revealed multiple protruding submucosal tumors in the descending and transverse colon. They were about 25mm to 65mm indiameter. Histological findings of biopsy specimens taken from the tumor of the colon revealed malignant lymphoma, diffuse, small cell type. After the chemotherapy, the partial colectomy was performed. An immunohistochemical staining showed that the tumor of the colon consisted of MT-1 and UCHL-1 positive cells. But eyelid tumor did not show monoclonal proliferation of the lymphoid tissue. Consequently, this case was diagnosed as T cell malignant lymphoma of the colon. T cell lymphoma of the colon is very rare, and our case is the seventh report of this disease in Japan.