title: Case report 578. Painful, enlarging mass on the inner aspect of the left upper arm.
authors.forename: M
authors.initials: M
authors.lastname: Sher
authors.forename: J G
authors.initials: JG
authors.lastname: Lorigan
authors.forename: A G
authors.initials: AG
authors.lastname: Ayala
authors.forename: H I
authors.initials: HI
authors.lastname: Libshitz
mesh_terms: D000293:Adolescent; D001859:Bone Neoplasms / Q000175:diagnosis*; D005260:Female; D006801:Humans; D006811:Humerus / Q000000981:diagnostic imaging; D008279:Magnetic Resonance Imaging; D010014:Osteolysis / Q000175:diagnosis*; D010026:Osteosclerosis / Q000175:diagnosis*; D011859:Radiography