title: Subcutaneous haemangiosarcoma in a cockatiel (Nymphicus hollandicus).
abstract: An ulcerated, 1 x 0.5 cm, subcutaneous mass on the craniolateral aspect of the right tibiotarsus of a 4-year-old male cockatiel was removed. Histologically, the neoplasm was non-encapsulated, infiltrative and composed of irregular vascular channels lined by branching and variably sized spindle-shaped cells with large vesicular nuclei, prominent nucleoli and rare mitoses. Surrounding these vascular channels were fibroblasts and mixed inflammatory cells. Neoplastic cells had diffuse immunoreactivity to factor VIII supporting a diagnosis of haemangiosarcoma.
authors.affiliation: Veterinary Diagnostic and Investigational Laboratory, The University of Georgia College of Veterinary Medicine, Tifton, GA, USA.
authors.forename: D G
authors.initials: DG
authors.lastname: Sledge
authors.forename: Z A
authors.initials: ZA
authors.lastname: Radi
authors.forename: D L
authors.initials: DL
authors.lastname: Miller
authors.forename: B S
authors.initials: BS
authors.lastname: Lynn
mesh_terms: D000818:Animals; D001715:Bird Diseases / Q000175:diagnosis* / Q000473:pathology; D046410:Cockatoos; D017809:Fatal Outcome; D006394:Hemangiosarcoma / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary*; D008297:Male; D009364:Neoplasm Recurrence, Local / Q000662:veterinary; D012878:Skin Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary*