Rectal carcinoma (MRI findings)

Case contributed by Dr Chris O'Donnell

Presentation

Mass at anal verge.

Patient Data

Age: 82
Gender: Female

We would normally insert a rectal gel to outline the lumen, but not in this case given the presence of an anal mass

Modality: MRI

Locally advanced rectal cancer invading the mesorectal fat with local and distant lymph node metastases as well as probable extension into the vault of the vagina (on the left) and extension via the anal mucosa out to the right posterior anal verge. Restricted diffusion is seen in the tumour and the local as well as distant lymph nodes. 

Case Discussion

​MRI is the investigation of choice for local staging of rectal cancer. T2-weighted imaging in 3 planes is recommended, parallel and perpendicular to the long axis of the rectum.

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Case Information

rID: 16805
Case created: 21st Feb 2012
Last edited: 21st Sep 2015
Inclusion in quiz mode: Included

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