Typical appearances of a colorectal carcinoma presenting with a large bowel obstruction.

The stenosing tumor in the rectosigmoid resulting in a large bowel obstruction.

In this case presenting before perforation.

Surgical findings were consistent with the CT findings.

HISTOLOGY REPORT

Moderately differentiated adenocarcinoma. pT4.

No lymphovascular invasion.

Eight lymph nodes: all negative.