Long-term survival after immunochemotherapy for juvenile colon cancer withperitoneal dissemination - A case report

A 20 year-old man was hospitalized with an abdominal mass and abdominal dis tension. Investigations resulted in a diagnosis of ileus caused by advanced colon cancer with peritoneal dissemination to the pouch of Douglas. Pallia tive surgery was performed to relieve bowel obstruction and debulk the tumo r. Histopathological examination showed that the tumor was a mucinous adeno carcinoma invading the serosa without lymph node metastasis. Ascites collec ted during the operation was diagnosed as class V. Administration of PSK (3 .0 g/day) and UFT (600 mg/day) as adjuvant immunochemotherapy was started p ostoperatively to achieve tumor dormancy. He has been followed as an outpat ient for 2.5 years with no ascites or abdominal symptoms.