Sigmoid tumor

Case contributed by Ian Bickle
Diagnosis certain


Eldery patient with altered bowel habit and PR bleeding of late. Failed endoscopy.

Patient Data

Age: 75 years
Gender: Male

Limited study.  Patient unable to retain barium and air.

Large circumferental tumor of the proximal sigmoid, causing a tight stricture with shoulder margins.

Background sigmoid diverticulosis.


Large sigmoid tumor.

Single liver metastasis.

Sigmoid diverticulosis.

Abdominal aortic aneurysm.

Case Discussion

Colonic cancer is one of the top 3 tumors in the western world, afflicting nearly equally both males and females.

Endoscopy if the gold standard investigation with CT for staging of a confirmed tumor.   In the case of the rectal cancer subset, MRI is performed for local staging.

With the additional advent of CT virtual colonoscopy the scope and role of barium enema is more limited, but often plays a role in failed colonoscopy, in both delineating the primary tumor and any synchronous disease.

The smorgasboard of imaging offerings if often to a degree dicatated by local practice/institution.

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