title: Nonbacterial pancystitus presenting as a bladder mass.
mesh_terms: D002675:Child, Preschool; D003556:Cystitis / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D011859:Radiography; D012208:Rhabdomyosarcoma; D001749:Urinary Bladder Neoplasms / Q000000981:diagnostic imaging*