title: Primary osteogenic sarcoma of the kidney presenting as staghorn calculus.
authors: Department of Surgery, Kwong Wah Hospital, Hong Kong.
authors: A K
authors: AK
authors: Ah-Chong
authors: A W
authors: AW
authors: Yip
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D007669:Kidney Calculi / Q000175:diagnosis*; D007680:Kidney Neoplasms / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D012516:Osteosarcoma / Q000175:diagnosis*