Chronic lymphocytic leukemia transformation into high-grade lymphoma: a description of Richter's syndrome in eight dogs.
Vet Comp Oncol
; 15(2): 366-373, 2017 Jun.
Article
em En
| MEDLINE
| ID: mdl-26463596
ABSTRACT
Richter's syndrome (RS) is the development of an aggressive lymphoma in patients with chronic lymphocytic leukaemia (CLL). In humans, RS occurs in 2-20% of CLL, which transform into diffuse large B-cell lymphoma but reports in dogs are scarce. This study retrospectively describes eight dogs with CLL progressing into RS. A database including 153 dogs with CLL (93T CD8+ and 55 B-CLL) was interrogated and RS was demonstrated in eight cases (representing 5.2% of total CLL) two with T-cell (2.2% of T CLL) and six with a B-cell immunophenotype (10.9% of B-CLL). When RS occurred, lymphocytes were decreased compared to CLL. Five dogs had anaemia and two dogs thrombocytopenia. Frequent clinical signs included lymph node swelling, coughing, vomiting, neurological signs and weight loss. Independently from the therapy, RS was associated with a short survival (median 41 days). RS should be considered as an unfavourable evolution in canine CLL.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Linfoma não Hodgkin
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Leucemia Linfocítica Crônica de Células B
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Transformação Celular Neoplásica
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Doenças do Cão
Tipo de estudo:
Observational_studies
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Risk_factors_studies
Limite:
Animals
Idioma:
En
Revista:
Vet Comp Oncol
Ano de publicação:
2017
Tipo de documento:
Article