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Folliculotropic Mycosis Fungoides

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Folliculotropic Mycosis Fungoides (MF) - Clinical Features: It occurs in middle-aged to elderly patients. Classic MF lesions occur on sun-protected (non-exposed) areas of the body. In contrast, folliculotropic MF involves the head and neck region, especially face and scalp more commonly than trunk or limbs. Patients present with erythematous patches, plaques, or groups of small follicular-based papules that are intensely pruritic and frequently associated with hair loss. Hypohydrosis may be present if sweat glands are involved.

The image shows lymphocytic infiltrate within and around hair follicles with sparing of the overlying epidermis. Some follicles show cystic change or mucinosis.

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