Abstract :
[en] Cutaneous epitheliotropic T-cell lymphoma in the dog is a rare neoplastic condition with unknown
aetiology. The dermatitis is characterized by infi ltration of neoplastic T lymphocytes with a specifi c
tropism for the epidermis and the adnexal structures. The different clinical and histological forms
(mycosis fungoides, pagetoid reticulosis and Sézary syndrome) are reviewed. The disease in the dog
resembles the human syndrome, but in 80% of the canine cases, neoplastic cells are CD4 − /CD8 +
versus CD4 + /CD8 − in 90% of the human patients. Prognosis is poor with a survival time from few
months to 2 years. Treatments frequently have a low effi cacy. New protocols using lomustine may
improve the poor prognosis of the disease.
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