CASE HISTORY / CLINIC:
Patient with rectal bleeding.



FINDINGS:
Abdominal CT scan after rectal filling with water (negative contrast mediuml) and i.v. application of contrast medium.
Broad-based sessile mass lesion or filling defect in the rectum.


DIAGNOSIS:
Rectal carcinoma

DIFFERENTIAL DIAGNOSIS:
Rectal adenoma.

Web resources:

1) Endoskopischer Atlas
2) Chirurgie online