Squamous cell carcinoma of colorectum is rare disease, and squarnous cell carcinoma in situ of colorectum is very rare disease. But, squamous carcinomas of the colorectum have clinico- pathological features in common with adenocarcinomas. Treatment is...
Squamous cell carcinoma of colorectum is rare disease, and squarnous cell carcinoma in situ of colorectum is very rare disease. But, squamous carcinomas of the colorectum have clinico- pathological features in common with adenocarcinomas. Treatment is the same but the prognosis of squamous cell carcinoma appears to be worse than that of adenocarcinoma. A 66-year old man has suffered chronic constipation and acute diarrhea. Barium enema and colonoscopy revealed about lobular 3cm sized mass with multiple tiny ulcerations on the surface in distal rectum. Colonoscopic biopsy and excisional biopsy showed tumor cells which are well circumscribed within columnar epithelium and basement membrane. Here, we presented a case of squamous cell carcinoma in situ of rectum. (Korean J Gastroenterol 1997; 30:114-118)