Hemothorax associated with telangiectatic osteosarcoma in a dog
Mahaffey, E.A.; Greene, C.E.
Journal of the American Veterinary Medical Association 187(3): 270-272
1985
ISSN/ISBN: 0003-1488 PMID: 3861602 Document Number: 265799
Hemothorax in a dog was attributed to bleeding from an intrathoracic mass attached to the sixth through the tenth ribs. The mass contained numerous cavernous, blood-filled spaces as well as bands of osteoid and occasional foci of osseous tissue. The diagnosis was telangiectatic osteosarcoma. Telangiectatic osteosarcoma is an uncommon variant of osteosarcoma. Cavernous, blood-filled spaces and paucity of bone are important histologic features. Metastasis was described in one of the seven telangiectatic osteosarcomas reported in dogs, and none was found in this case.