Rectal adenocarcinoma and ejaculatory duct cyst on MRI

Case contributed by Dr Vikas Shah


Rectal bleeding. Sigmoidoscopy and biopsy confirm rectal adenocarcinoma. Staging MRI.

Patient Data

Age: 65 years
Gender: Male

There is a semi-annular anterior mid-rectal lesion of intermediate signal intensity. It is 3 cm long and the distal edge is 6 cm from the anal margin. There is no penetration through the muscularis propria. There are 2 lymph nodes in the mesorectum with abnormal signal. There are no abnormal inguinal or pelvic sidewall nodes, and no signs of extramural venous invasion. The rectal cancer is staged as T2 N1 Mx V0, CRM clear.

There is an incidental round structure arising from base of the prostate, situated between the seminal vesicles. It is high signal on T2 weighted images and is an ejaculatory duct cyst.

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Case information

rID: 46717
Published: 28th Jul 2016
Last edited: 14th Aug 2019
Inclusion in quiz mode: Excluded

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