This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumours of skin, Subject name: Dental
[{'content': 'Mycosis fungoides affects: \nSelect and explain. \nA. T cells, B. B cells, C. NK cells, D. Keratinocytes', 'role': 'user'}, {'content': "Answer: A \nExplanation: Mycosis fungoides is a cutaneous T cell lymphoma Etio: - Unknown, sometime HTLV I virus- It is MC cutaneous lymphoma Histological findings : 1. Sezary cells - Sezary cell are malignant lymphocytes with increased cell size and convoluted nucleus aka Cerebriform nucleus 2. Epidermo tropism - affection to move towards the epidermis3. Pautrier's microabscess Prognosis: poor (fatal) T/t - Radiotherapy - full skin electron beam therapy", 'role': 'assistant'}]