title: Mirror-image solitary bone cyst of the humerus in a pair of mirror-image monozygotic twins.
abstract: Mirror-image solitary bone cysts (SBCs) of the humerus in a pair of mirror-image monozygotic twins are presented. One twin was right-handed and had SBC at the left humerus. The other twin was left-handed and had SBC at the right humerus. The directions of the whirl of hair on their heads were opposite with each other. These findings strongly suggest cytogenetic factors in the aetiology or pathogenesis of SBC.
authors.affiliation: Department of Orthopaedic Surgery and Musculoskeletal Oncology, Tokyo Metropolitan Komagome Hospital, 3-18-22 Hon-Komagome, Bunkyo-ku, Tokyo 113-8677, Japan. goto-tky@cick.jp
authors.forename: Takahiro
authors.initials: T
authors.lastname: Goto
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Nemoto
authors.forename: Tomotake
authors.initials: T
authors.lastname: Okuma
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kobayashi
authors.forename: Nobuaki
authors.initials: N
authors.lastname: Funata
mesh_terms: D001707:Biopsy, Needle; D001845:Bone Cysts / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology*; D002648:Child; D003475:Curettage / Q000379:methods; D004200:Diseases in Twins / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D005500:Follow-Up Studies; D005592:Fracture Fixation / Q000379:methods; D005598:Fractures, Spontaneous / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D006801:Humans; D006810:Humeral Fractures / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D006811:Humerus; D007150:Immunohistochemistry; D008279:Magnetic Resonance Imaging; D008297:Male; D011859:Radiography; D018570:Risk Assessment; D016896:Treatment Outcome; D014430:Twins, Monozygotic