title: Unusual evolution of a benign-looking cortical defect of the proximal humerus. A case of intracortical osteosarcoma?
abstract: A case of an osteosarcoma following a pathological fracture through a small benign-looking cortical lesion of the proximal humerus is described. The unusual evolution from a small cortical lesion to a malignant lesion raises the question whether this is a case of an intracortical osteosarcoma that has some distinct features from those of previously reported cases.
authors.affiliation: Department of Pediatric Orthopedics, University Hospital VUB, Brussels, Belgium.
authors.forename: H
authors.initials: H
authors.lastname: De Boeck
authors.forename: F
authors.initials: F
authors.lastname: Handelberg
authors.forename: J
authors.initials: J
authors.lastname: Otten
mesh_terms: D001845:Bone Cysts / Q000175:diagnosis / Q000000981:diagnostic imaging; D001847:Bone Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D002471:Cell Transformation, Neoplastic / Q000473:pathology; D002648:Child; D003937:Diagnosis, Differential; D018483:Diaphyses / Q000293:injuries; D005260:Female; D005500:Follow-Up Studies; D005598:Fractures, Spontaneous / Q000175:diagnosis / Q000000981:diagnostic imaging; D006801:Humans; D006810:Humeral Fractures / Q000175:diagnosis / Q000000981:diagnostic imaging; D006811:Humerus / Q000473:pathology*; D012516:Osteosarcoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography