Peer-reviewed veterinary case report
Thymic blood vessel tumor found in a dog with chest mass
By Barrantes Murillo, Daniel F et al.·Published in Journal of comparative pathology·2023·Department of Pathobiology, United States·View original on PubMed →
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Original publication title: Thymic cavernous haemangioma in a dog.
- Species:
- dog
Plain-English summary
A 12-year-old male neutered Australian Shepherd was brought to the vet with a large mass in his chest. After tests, including a CT scan, the vet found a significant tumor in the area where the thymus gland is located. The mass was surgically removed, and it turned out to be a rare type of tumor called a thymic cavernous hemangioma, which is made up of blood-filled spaces. This is the first reported case of this type of tumor in a dog. The dog is now recovering after the surgery.
People also search for: dog chest mass · Australian Shepherd tumor · thymic cavernous hemangioma in dogs · dog surgery recovery
Abstract
A 12-year-old male neutered Australian Shepherd Dog was presented to Charlotte Animal Referral & Emergency with a history of a thoracic mass. On physical examination, physiological parameters were within the normal ranges, and a complete haemogram and serum biochemistry profile were unremarkable except for mild thrombocytopenia. A computed tomography scan revealed a 21 × 15 × 12.7 cm thoracic mass encompassing the cranial mediastinum and extending to the right caudal thorax. The mass was surgically removed and histopathological evaluation revealed that it comprised remnants of the thymus and a neoplasm composed of large blood-filled vascular spaces lined by a single layer of endothelial cells with mild anisocytosis and anisokaryosis. The neoplastic cells had diffuse strong immunolabeling for endothelial cell marker CD31. Multifocally, there were large cystic degenerated areas of thymic tissue lined by plump cytokeratin AE1/AE3-positive epithelial cells. Based on these findings, a diagnosis of thymic cavernous haemangioma (CH) was made. Thymic CH is rare in animals, with the only reported case in a cross bred cow. To our knowledge, this is the first case of a thymic CH in a dog.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/36931010/