title: Late-onset fracture-associated osteosarcoma in a cat.
abstract: An 18-year-old male, castrated Domestic Shorthaired cat was presented with the complaint of acute severe lameness of the left pelvic limb. There was no history of trauma, apart from a distal physeal left femoral fracture that had been repaired 17 years previously. Radiology revealed a displaced distal metaphyseal femoral fracture with marked areas of bone lysis and periosteal proliferations. A pathological fracture due to a bone neoplasia was suspected. An amputation with coxofemoral disarticulation was performed. Histopathology confirmed the tentative diagnosis of appendicular osteo-sarcoma. No postoperative complications were encountered and the cat made a full recovery. This case shows an unusual presentation of a late-onset fracture-associated feline osteosarcoma.
authors.affiliation: Small Animal Hospital, Stommeln, Germany.
authors.forename: B
authors.initials: B
authors.lastname: Sonnenschein
authors.forename: M J
authors.initials: MJ
authors.lastname: Dickomeit
authors.forename: M S
authors.initials: MS
authors.lastname: Bali
mesh_terms: D000671:Amputation, Surgical / Q000662:veterinary; D000818:Animals; D002371:Cat Diseases / Q000209:etiology* / Q000473:pathology; D002415:Cats; D005269:Femur / Q000473:pathology*; D050723:Fractures, Bone / Q000150:complications / Q000628:therapy / Q000662:veterinary*; D005598:Fractures, Spontaneous / Q000209:etiology / Q000662:veterinary*; D008297:Male; D012516:Osteosarcoma / Q000209:etiology / Q000662:veterinary*