Topic:Hemangiosarcoma
Hemangiosarcoma in horses is a malignant tumor originating from the endothelial cells that line blood vessels. This neoplasm is characterized by its aggressive nature and potential to metastasize to various organs. In horses, hemangiosarcoma can occur in different locations, including the skin, spleen, liver, and heart. Clinical signs may vary depending on the tumor's location and can include lethargy, weight loss, and anemia. Diagnosis typically involves imaging techniques such as ultrasound or radiography, complemented by histopathological examination of biopsy samples. Treatment options are limited and often include surgical excision when feasible, although the prognosis is generally poor. This page gathers peer-reviewed research studies and scholarly articles that explore the pathogenesis, diagnostic approaches, and treatment strategies for hemangiosarcoma in equine patients.
Equine conjunctival haemangiosarcoma: Clinical presentation, management, and outcome of seven cases in the United Kingdom. Only 27 cases of equine conjunctival haemangiosarcoma have been reported in the literature over the past 37 years. Out of these, 22% of cases were lost to follow-up, 52% were euthanized, and 26% survived. A scarcity of cases and information is available for this rarely seen conjunctival tumour. Unassigned: To describe the clinical features, management, and outcome of conjunctival hemangiosarcoma in seven horses in the UK. Unassigned: Optivet medical records were reviewed for equine cases seen or advised on with a histopathological diagnosis of conjunctival haemangiosarcoma between January 2013...
Ocular and periocular hemangiosarcoma in six horses. To determine the characteristics of and prognosis for ocular and periocular hemangiosarcoma in horses. Methods: Six horses treated for ocular or periocular hemangiosarcoma. Methods: A retrospective review of medical records from 2007 to 2015 was performed to identify horses with a histologic diagnosis of ocular or periocular hemangiosarcoma. Signalment (age, sex, breed), duration of clinical signs, prior treatment, tumor size and location, medical and surgical treatment including postoperative chemotherapy, follow-up time, and outcome were obtained from medical records. Histopathology was revi...
Hemangiosarcoma in 11 young horses. Hemangiosarcoma is a rare neoplasm of horses and hemangiosarcoma in young horses might behave differently than in mature horses. The purpose of this study was to identify the characteristics of hemangiosarcoma occurring in horses < or = 3 years of age. Medical records from 1982 to 2004 were searched for horses < or = 3 years of age with a histopathologic diagnosis of hemangiosarcoma. Eleven records were identified. Thoroughbred and Thoroughbred crosses predominated. Age ranged from 9 days to 3 years. All horses presented with cutaneous or leg swellings or joint effusion. Physical examina...
[A pony with a metastasized hemangiosarcoma]. A splenic hemangiosarcoma with multiple organ metastases in a pony is reported. Clinical signs included weakness and pallor. Abdominal paracentesis revealed haemorrhagic fluid. Laboratory data included anaemia, thrombocytopenia and hypoproteinaemia. Necropsy findings included a haemangiosarcoma in the spleen with metastases in the lung, liver, kidney and omentum.
Thoracic neoplasia in equids: 35 cases (1967-1987). Thirty-two horses and 3 ponies had neoplasia involving the thoracic cavity. Lymphosarcoma of the thorax was found in 19 (54.2%) of the equids. The other 16 equids had metastatic adenocarcinoma (7 horses; 20%), metastatic squamous cell carcinoma (5 equids; 14.3%), metastatic hemangiosarcoma (3 equids; 8.6%) or undifferentiated sarcoma (1 horse; 2.9%). Thoracic neoplasia was diagnosed before death in 15 equids (42.9%).