Present address: Rua Clovis Pestana 793, DCCRA – UNESP, Araçatuba, SP 16050-680, Brazil.
Clinical, histological and immunophenotypic findings in a mare with a mammary lymphoma associated with anaemia and pruritus
Article first published online: 18 FEB 2011
© 2011 EVJ Ltd
Equine Veterinary Education
Volume 23, Issue 4, pages 177–183, April 2011
How to Cite
Mendes, L. C. N., de Araujo, M. A., Bovino, F., Rozza, D. B., Machado, G. F., Cadioli, F. A., Feitosa, F. F. L. and Peiró, J. R. (2011), Clinical, histological and immunophenotypic findings in a mare with a mammary lymphoma associated with anaemia and pruritus. Equine Veterinary Education, 23: 177–183. doi: 10.1111/j.2042-3292.2010.00174.x
- Issue published online: 8 MAR 2011
- Article first published online: 18 FEB 2011
- lymph nodes;
- T cells
An 18-year-old Quarter Horse mare presented with an 18 week history of dermatological lesions characterised by recurrent urticaria and recent signs of enlarged mammary glands, pyrexia, alopecia and intense pruritus. Haematological and serum biochemical analyses revealed anaemia, leucocytosis, thrombocytopenia and hyperfibrinogenaemia. Mammary discharge was evaluated and revealed neutrophilia. Cytological examinations of fine needle aspirates from the parotid lymph nodes were normal. Common causes of anaemia were ruled out by specific tests. The initial diagnosis was mastitis and 2 weeks later the animal returned to the hospital with worsening of clinical signs, intermittent fever, intense pruritus and generalised alopecia. Blood samples were collected for haematological and serum biochemical analyses, and the mammary gland and parotid lymph nodes were biopsied. Rectal palpation revealed a large irregular mass near the left kidney with adhesions of surrounding structures. The animal died before the laboratory results were ready. This report details the clinical, histological and immunophenotypic findings of a case of large lymphoma in a mare.