A Rare Case of Primary Colonic Malignant Myofibroblastic Tumor

Yohei Hamanaka, Koyu Suzuki*, Takeki Nishio and Hisashi Onodera

Department of Surgery and Department of Pathology*, St. Luke's International Hospital

A 59-year-old man with a history of rectal cancer, BehÇet's disease, Hodgkin lymphoma and ascending-colon cancer, and suffering from gastric cancer was found during distal gastrectomy to have a 3 cm lesion in the transverse colon. We partially resected the transverse colon, for which pathological findings indicated a myofibroblastic tumor. Seven months after his latest surgery, he suffered right subcostal pain, and computed tomography showed multiple low-density areas in the liver. Pathological findings from the liver biopsy indicated myofibroblastic tumor, the same as for the transverse-colon tumor. After hepatic artery chemotherapy with mitomycin C and degradable starch microspheres in seven courses, he died of hepatic failure.

Key words
myofibroblastic tumor, gastrointestinal mesenchymal tumor, multiple malignancy

Reprint requests
Yohei Hamanaka Department of Surgical Oncology, Tohoku University Graduate School of Medicine
1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574 JAPAN

Accepted
June 18, 2009

To read the PDF file you will need Abobe Reader installed on your computer.