Colorectal cancer recurrence at the colostomy and midline scar sites

Case contributed by Fabricio Machado
Diagnosis almost certain

Presentation

A patient who underwent an abdominoperineal resection for low rectal cancer came for follow-up.

Patient Data

Age: 60 years
Gender: Male

PET CT (selected images)

Nuclear medicine

Close inspection of the CT scan reveals an inconspicuous soft tissue nodule at the colostomy site (red arrow) and soft tissue at the midline scar site (yellow arrow), corresponding to the increased FDG uptake at the colostomy and midline scar sites respectively.

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