system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 50-year-old man presents because of a pruritic rash of several years' duration. The rash is characterized by erythematous, eczematoid patches, and raised plaques and is distributed asymmetrically over the chest and abdomen. Biopsy of the plaques reveals atypical CD41 T cells with cerebriform nuclei. Fuher marker studies lead to a diagnosis of mycosis fungoides. Which of the following is true of this disease?
assistant
The correct answer is  Mycosis fungoides is a T-cell lymphoma characterized by a rash that may be sited at any cutaneous location. Atypical CD4+ T cells with cerebriform nuclei are found on biopsy. EPIDERMOTROPISM : Pautrier'smicroabscess is a collection of malignant lymphocytes in the epidermis occurring as solid intraepidermal nodules