title: [Rare case of location of an echinococcal cyst in the retroperitoneal space].
mesh_terms: D004443:Echinococcosis / Q000175:diagnosis; D006801:Humans; D008297:Male; D008875:Middle Aged; D012187:Retroperitoneal Space
vernacular_title: Redkiĭ sluchaĭ lokalizatsii ekhinokokkovoĭ kisty v zabriushinnom prostranstve