A CASE OF CECAL MALIGNANT VILLOUS TUMOR COEXISTING WITH AN APPENDICAL MUCINOUS CYSTADENOCARCINOMA

Abstract

A case of cecal malignant villous tumor associating with an appendical mucinous cystadenocarcinoma is reported. A 59-year-old woman was incidentally found to have a cystic ileocecal lesion by abdominal CT scan for the purpose of follow-up for a femoral head's replacement surgery at the department of orthopedics. The patient was transferred to the department with a diagnosis of cystic ileocecal tumor. A laparotomy disclosed an elastic soft tumor, 6×7cm in size in the ileocecal junction and the cystically swollen appendix vermiformis. A right hemicolectomy was performed. The resected material revealed a whole-circumferential villous tumor measuring 4.5×6cm in the cecum and a mucinous cystic tumor in the appendix vermiformis. Histopathologically, the cecal tumor was diagnosed as villous adenoma coexisting with the well differentiated adenocarcinoma, and the appendical tumor was diagnosed as mucinous cystadenocarcinoma, which were double cancer existing independently.