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Cutaneous lymphosarcoma and leukemia in a cat
R O Schick1, G F Murphy, M H Goldschmidt
1Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Philadelphia 19104.
Journal of the American Veterinary Medical Association
|October 15, 1993
Summary
A cat diagnosed with cutaneous lymphosarcoma and leukemia presented with symptoms mimicking human Sézary syndrome. This condition should be considered in cats exhibiting chronic pruritic exfoliative dermatoses.
Area of Science:
- Veterinary Dermatology
- Comparative Oncology
- Hematology
Background:
- Cutaneous lymphosarcoma and leukemia are forms of cancer affecting the skin and blood in felines.
- Sézary syndrome is a specific type of cutaneous T-cell lymphoma in humans, characterized by exfoliative erythroderma and circulating malignant T-cells (Sézary cells).
- Understanding feline hematologic and dermatologic conditions aids in comparative disease research.
Observation:
- A feline patient exhibited pruritus, exfoliative dermatosis, weight loss, and lymphadenopathy.
- Clinical signs in the cat were notably similar to those observed in human Sézary syndrome.
- Dermatopathology and ultrastructural analysis of circulating cells were performed.
Findings:
- Dermatopathologic findings confirmed cutaneous lymphosarcoma and leukemia.
- Ultrastructural morphology of circulating cells and dermal infiltrate were consistent with Sézary cells.
- The feline condition presented a strong parallel to human Sézary syndrome.
Implications:
- Cutaneous lymphosarcoma and leukemia should be included in the differential diagnosis for cats with chronic pruritic and exfoliative skin diseases.
- This case highlights the potential for comparative studies between feline and human cutaneous T-cell lymphomas.
- Recognizing these clinical and pathological similarities can improve feline dermatologic diagnostics and treatment strategies.