A CASE OF SIGMOID COLON CANCER LIKE TYPE III IN MACROSCOPIC CLASSIFICATION INVADING PROPER MUSCLE

Abstract

A 91-years old woman was admitted to our hospital with the chief complaint of bloody stool. Sigmoid colon cancer like type III in macroscopic classification was found 15cm distant from the anal edge by colonoscopy. In resected specimen, the ulcreation of the tumor looked like a punched out lesion from the surrounding mucosa, measuring 2.5×1.5cm in size. Pathological findings revealed a well-differentiated adenocarcinoma located in the ulcerated area and cancerous invasion in the proper muscle. This unusual form, pm, INFβ, lyl, vl, ow (-), aw (-), and n (-), was possibly advanced type IIc or III.