What is the definition or description of: transrectal ultrasound?

Ultrasound of rectum: It's an special ultra sound prope placed via the rectum to evaluate the rectal wall. The most common use is to stage rectal cancers or in the evaluation of rectal /pararectal masses or infection. Hope this helps.

Probe: Transrectal ultrasound involves the insertion of a special probe through the anus to obtain ultrasound images of the tissues around the rectum.