Abstract
A 74-year-old woman complaining of general fatigue was referred to our hospital for the investigation of an ileocecal tumor detected by abdominal CT scan. Laboratory data on admission showed anemia and inflammation. Tumor markers including CEA and CA19-9 were in normal limits. Colonoscopy revealed a type 2 tumor completely encircled the bowel from the ileocecal region to the ascending colon. Enhanced CT scan showed a huge tumor in the pelvic cavity with right hydronephrosis, suggesting the tumor invasion to the right ureter. Distant metastasis was not detected. After a ureteral catheter was placed, right hemicolectomy with D3 dissection was performed. The histopathological diagnosis was poorly differentiated squamous cell carcinoma of the cecum without lymph node metastasis (ss, ly1, v1, n0, and Stage II). The postoperative course was uneventful. She has been treated with UFT/LV as adjuvant chemotherapy, and is doing well without recurrence 6 months after the surgery. Among colorectal carcinomas, squamous cell carcinomas are very rare, especially those arising in the colon. Herein we report this rare case with a review of the literature.
