title: Extraskeletal osteoma in a cat.
abstract: This paper describes a case of a benign osseous lesion which arose in the right front leg of an 8-year-old spayed female cat. The growth was situated in the dermal tissue above the olecranon, but not attached to it, and shelled out easily at surgery. While certain non-neoplastic lesions, such as hamartomas or cases of heterotopic ossification, may appear histologically similar, the present case was considered to be a true tumour on the basis of the clinical, macroscopic and histological findings, and was termed an osteoma. The cat is remaining under observation, but there had been no recurrence 3 1/2 months after surgery.
mesh_terms: D000818:Animals; D001859:Bone Neoplasms / Q000473:pathology / Q000662:veterinary*; D002371:Cat Diseases / Q000473:pathology*; D002415:Cats; D005260:Female; D005552:Forelimb; D010016:Osteoma / Q000473:pathology / Q000662:veterinary*; D012983:Soft Tissue Neoplasms / Q000473:pathology / Q000662:veterinary*