Diverticula of the rectum.
D000367:Age Factors; D000368:Aged; D012809:Colon, Sigmoid; D003937:Diagnosis, Differential; D004240:Diverticulum / Q000601:surgery; D004241:Diverticulum, Colon / Q000150:complications; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012002:Rectal Diseases / Q000150:complications / Q000601:surgery