title: Subperiosteal hematoma. Another scintigraphic "doughnut".
abstract: The "doughnut" sign has been described frequently in brain and skeletal scintigraphy, but not previously in a subperiosteal hematoma associated with neurofibromatosis and focal gigantism. The primary cause and evolution of this skeletal "doughnut" sign is discussed; a brief review of other causes of this scintigraphic finding also is given.
authors.forename: G A
authors.initials: GA
authors.lastname: Mandell
authors.forename: H T
authors.initials: HT
authors.lastname: Harcke
mesh_terms: D001847:Bone Diseases / Q000000981:diagnostic imaging / Q000209:etiology; D002648:Child; D006406:Hematoma / Q000000981:diagnostic imaging* / Q000209:etiology; D006801:Humans; D007866:Leg; D008297:Male; D009456:Neurofibromatosis 1 / Q000150:complications; D010521:Periosteum / Q000000981:diagnostic imaging; D011859:Radiography; D011877:Radionuclide Imaging; D013977:Tibia / Q000000981:diagnostic imaging*