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Description of clinical and pathological findings, treatment and outcome of feline large granular lymphocyte lymphoma (1996–2004)*

Authors


  • *

    Data presented in part at the 24th Annual Conference of the Veterinary Cancer Society, Kansas City, MO, USA, 3–6 November 2004.

E. L. Krick
Department of Clinical Studies
Matthew J. Ryan Veterinary
Hospital of the University of
Pennsylvania
3900 Delancey St
Philadelphia
PA 19104, USA
e-mail: ekrick@vet.upenn.edu

Abstract

Feline large granular lymphocyte (LGL) lymphoma is an uncommon, morphologically distinct variant of feline lymphoma. Limited information exists in the literature regarding pathological and immunohistochemical descriptions, clinical findings, treatment and survival times. The purpose of this study was to describe clinical features, treatment and outcome in feline LGL lymphoma. Medical records of 45 cats with LGL lymphoma were retrospectively evaluated. Decreased appetite/anorexia, weight loss, lethargy and vomiting were the most commonly reported clinical signs. All cats tested for feline leukaemia virus and feline immunodeficiency virus infection were negative. The mesenteric lymph nodes and small intestine were the most commonly affected organs. One complete response and six partial responses were noted in the 23 cats that received chemotherapy as their initial treatment. Median survival time for cats that were treated was 57 days. Based on these results, feline LGL lymphoma appears to be minimally responsive to chemotherapy and is associated with a grave prognosis.

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