title: The "bat sign" of pectoral rhabdomyolysis.
abstract: A 22-year-old man with foot pain was referred for evaluation of sesamoiditis. A Tc-99m methylene-diphosphonate bone scan was performed which revealed increased radiopharmaceutical uptake in the big toes, but also showed curious abnormal thoracic activity. Normal activity at sternoclavicular joints and sternum mimics ears, head and body of a bat, and the pectorals mimic the wings. The patient mentioned that he had started lifting weights a few days earlier. Clinical and echographic evaluations were diagnostic of pectoral inflammation suggesting rhabdomyolysis.
authors.affiliation: Department of Nuclear Medicine, Chilean Air Force Hospital, Santiago, Chile.armijo@gmail.com
authors.forename: Soledad
authors.initials: S
authors.lastname: Armijo
authors.forename: Mónica
authors.initials: M
authors.lastname: Peña
authors.forename: Felipe
authors.initials: F
authors.lastname: Bustos
authors.forename: Bárbara
authors.initials: B
authors.lastname: Morales
mesh_terms: D001842:Bone and Bones / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D010369:Pectoralis Muscles / Q000000981:diagnostic imaging* / Q000473:pathology*; D011877:Radionuclide Imaging; D012206:Rhabdomyolysis / Q000000981:diagnostic imaging*; D013669:Technetium Tc 99m Medronate; D055815:Young Adult
chemical_list: D013669:Technetium Tc 99m Medronate