Cutaneous Lymphoma

This 11-year-old, spayed female mixed-breed dog had been examined by several veterinarians for an un­diagnosed skin condition of several-months duration. Cutaneous lymphoma was eventually diagnosed on both fine-needle aspiration cytology and skin biopsy. The skin is one of several tissues of the body that can be the primary site of lymphoma. In dogs, cutaneous lymphoma can appear as large nodules, as shown in this picture, but also as small papular growths, small nodules, or plaquelike lesions with or without ulcerations. Metastasis can occur in advanced stages. Treatment is usually palliative using standard chemotherapeutic protocols.

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