Pseudoneoplastic form of schistosomiasis monsoni.
D003937:Diagnosis, Differential; D006099:Granuloma / Q000209:etiology* / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D012002:Rectal Diseases / Q000209:etiology*; D012004:Rectal Neoplasms / Q000175:diagnosis; D012187:Retroperitoneal Space; D012552:Schistosomiasis / Q000150:complications*