title: Chondroblastoma arising in the triradiate cartilage. Report of two cases with review of the literature.
abstract: Chondroblastoma is a relatively rare benign bone tumor of cartilage origin. Roentgenologically it presents usually as a region of lytic destruction of bone with a thin sclerotic rim in the epiphysis of long tubular bone. Less than 9% occur in the pelvic bones but show a tendency to arise from the triradiate cartilage. We present two cases of chondroblastoma originating in the triradiate cartilage, each showing extensive lytic bony destruction and an intrapelvic soft tissue mass. A review of the literature suggests that chondroblastoma of the triradiate cartilage shows an aggressive radiological appearance.
mesh_terms: D000293:Adolescent; D001859:Bone Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery / Q000648:ultrastructure; D002804:Chondroblastoma / Q000000981:diagnostic imaging* / Q000601:surgery / Q000648:ultrastructure; D005260:Female; D006621:Hip Joint / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D011630:Pubic Bone / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed