Highlights The occurrence of rectal annular constriction due to infiltration by bladder cancer is relatively rare, and difficult diagnosis by colonoscopy. The images including computed tomography, colonoscopy, and magnetic resonance imaging was fully recorded in our report. The poor prognosis was noted from literature review with no record for survival >2 years after diagnosis of a rectal lesion.

Highlights Images of the patient neck and buccal mucosa were taken when symptoms first appeared. The images on the following 3 days show the neck swelling to have subsided. To the best of our knowledge, we present the first case of anaesthesia mump after surgery of colectomy.