Abstract
A 63-year-old male, in and after mid-May 1992, had a continuous episode of melena. After late October, constipation and a sense of abdominal distention developed, so the patient came to our clinic for examination. Initial colonoscopy revealed a type 3' tumor occupying almost the entire circumference of the sigmoid colon about 20 cm from the anal edge. Examination by fiberscope, which had been inserted beyond the stenosed site, revealed normal mucosa extending 15 cm from the oral side, slightly edematous mucosa extending about 20 cm orally from the normal mucosa, and a shallow ulcer running vertically in three lines. The mucosal surface from the ulcerous lesion to the oral side was normal, and the mucosal border of the lesion was well demarcated. Our report of this case is presented here along with relevant references. We believe that obstructive colitis accompanied by intestinal obstruction is relatively rare, and that disease observable beyond a stenosed part by endoscopy is even more rare.
