Residual lymphocele.
Uncomplicated lymphoceles can cause lateral extrinsic compression of the sigmoid colon. Ultrasound is the study of choice to define these cystic collections, which may persist many months as a postoperative complication of pelvic lymph node dissection.
D000328:Adult; D003560:Cysts / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D008197:Lymph Node Excision / Q000009:adverse effects*; D008206:Lymphatic Diseases / Q000175:diagnosis / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D010388:Pelvis; D014463:Ultrasonography