title: Periosteal osteosarcoma in the long head of the triceps in a dog.
abstract: A 2.5-year-old Labrador retriever was evaluated for forelimb lameness. Fine-needle aspirates of a mass in the proximal brachium were suggestive of a mesenchymal tumor. The dog was euthanized and necropsied. Radiographic evaluation and gross and histopathological findings provided a diagnosis of periosteal osteosarcoma in the long head of the triceps.
authors.affiliation: Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri-Columbia 65211, USA.
authors.forename: J L
authors.initials: JL
authors.lastname: Cook
authors.forename: B T
authors.initials: BT
authors.lastname: Huss
authors.forename: G C
authors.initials: GC
authors.lastname: Johnson
mesh_terms: D000818:Animals; D001707:Biopsy, Needle / Q000662:veterinary; D001859:Bone Neoplasms / Q000473:pathology / Q000662:veterinary*; D004283:Dog Diseases / Q000473:pathology*; D004285:Dogs; D005260:Female; D005552:Forelimb; D006811:Humerus / Q000473:pathology*; D007794:Lameness, Animal / Q000473:pathology; D018482:Muscle, Skeletal / Q000000981:diagnostic imaging / Q000473:pathology*; D018217:Osteosarcoma, Juxtacortical / Q000473:pathology / Q000662:veterinary*; D010521:Periosteum; D011859:Radiography