Peer-reviewed veterinary case report
Feline alimentary lymphoma: 2. Further diagnostics, therapy and prognosis.
- Journal:
- Journal of feline medicine and surgery
- Year:
- 2012
- Authors:
- Barrs, Vanessa R & Beatty, Julia A
- Affiliation:
- University of Sydney · Australia
- Species:
- cat
Plain-English summary
This study discusses different types of alimentary lymphoma (a type of cancer affecting the intestines) in cats, highlighting the importance of accurate diagnosis since treatment and outcomes can vary significantly. For low-grade alimentary lymphoma, which is harder to diagnose, veterinarians usually need to take a full-thickness biopsy of the intestine, while other types can often be diagnosed with simpler tests. Cats with low-grade lymphoma generally respond well to medications like oral prednisolone and chlorambucil, leading to long-lasting improvement, but the more aggressive forms of lymphoma require more complex treatments and have a poorer outlook. There is also limited information on treating large granular lymphocyte lymphoma, which has the worst prognosis, but some early studies suggest that radiation therapy might help. Overall, the findings emphasize the need for careful diagnosis and tailored treatment plans for cats with this condition.
Abstract
PRACTICAL RELEVANCE: Accurate diagnosis of the distinct subtypes of alimentary lymphoma (AL) that occur in cats is important as there are major differences between them in clinical presentation, treatment and prognosis. Unlike intermediate- and high-grade alimentary lymphoma (I/HGAL) and large granular lymphocyte lymphoma (LGLL), which can often be diagnosed by aspiration cytology, full-thickness intestinal biopsies are usually required for the diagnosis of low-grade alimentary lymphoma (LGAL). CLINICAL CHALLENGES: LGAL is an increasingly recognised clinical problem and it can be challenging to differentiate from inflammatory disease. Where there is ambiguity on histology, further diagnostics (immunophenotyping and clonality analysis) may be required. The diagnosis of LGLL requires an index of suspicion as it may be missed with routine diagnostics. While cats with LGAL typically achieve durable remissions with oral prednisolone and chlorambucil, I/HGAL runs a more aggressive clinical course and requires multi-agent chemotherapeutic protocols. Information on the treatment of LGLL is limited and this form of AL has the poorest prognosis. Preliminary studies suggest that abdominal irradiation may potentially be of benefit in cats with AL and further investigations are warranted. EVIDENCE BASE: The evidence supporting this review is derived from grade II, III and IV prospective studies, retrospective case series, reviews, extrapolation from other species, pathophysiological justification and the combined clinical experience of those working in the field.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/22370861/