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Molossi FA, Henker LC, Cecco BSD, Bandinelli MB, Rodrigues R, Sonne L, Driemeier D, Pavarini SP. Pathological and immunohistochemical aspects of acute megakaryoblastic leukaemia in a cat - Short communication. Acta Vet Hung 2021; 69:175-179. [PMID: 34224399 DOI: 10.1556/004.2021.00025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 06/14/2021] [Indexed: 11/19/2022]
Abstract
An adult, mixed-breed, feline leukaemia virus (FeLV-) positive female cat was presented with mucosal jaundice and a history of anorexia and constipation for three days. Physical examination revealed splenomegaly, cachexia, and dehydration. Humane euthanasia was conducted, followed by postmortem examination. Grossly, the cat was icteric, and presented hepatomegaly with multifocal white spots and splenomegaly. Histologically, the bone marrow was nearly completely replaced by a proliferation of megakaryocytes and megakaryoblasts, and there was a proliferation of fibrous connective tissue. Similar neoplastic proliferation was observed infiltrating the liver, lymph nodes, spleen, kidney, skeletal muscle, and lungs. Immunohistochemistry was performed for von Willebrand Factor (VWF), CD79α, CD3, feline immunodeficiency virus, FeLV, and CD61. Marked cytoplasmic labelling was observed in the neoplastic cells for FeLV, VWF and CD61, corroborating the diagnosis of acute megakaryoblastic leukaemia.
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Affiliation(s)
- Franciéli Adriane Molossi
- 1Department of Veterinary Pathology, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9090, Porto Alegre, Rio Grande do Sul, 91540-000, Brazil
| | - Luan Cleber Henker
- 1Department of Veterinary Pathology, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9090, Porto Alegre, Rio Grande do Sul, 91540-000, Brazil
| | - Bianca Santana De Cecco
- 1Department of Veterinary Pathology, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9090, Porto Alegre, Rio Grande do Sul, 91540-000, Brazil
| | - Marcele Bettim Bandinelli
- 1Department of Veterinary Pathology, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9090, Porto Alegre, Rio Grande do Sul, 91540-000, Brazil
| | - Rochana Rodrigues
- 2Chatterie Centro de Saúde do Gato, Private Veterinary Clinic, Porto Alegre, Rio Grande do Sul, Brazil
| | - Luciana Sonne
- 1Department of Veterinary Pathology, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9090, Porto Alegre, Rio Grande do Sul, 91540-000, Brazil
| | - David Driemeier
- 1Department of Veterinary Pathology, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9090, Porto Alegre, Rio Grande do Sul, 91540-000, Brazil
| | - Saulo Petinatti Pavarini
- 1Department of Veterinary Pathology, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9090, Porto Alegre, Rio Grande do Sul, 91540-000, Brazil
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Valentini F, Tasca S, Gavazza A, Lubas G. Use of CD9 and CD61 for the characterization of AML-M7 by flow cytometry in a dog*. Vet Comp Oncol 2011; 10:312-8. [DOI: 10.1111/j.1476-5829.2011.00290.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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