Mycosis Fungoides

**Semantic type:** Neoplastic Process

**Definition:** A peripheral (mature) T-cell lymphoma presenting in the skin with patches/plaques. It is characterized by epidermal and dermal infiltration of small to medium-sized T-cells with cerebriform nuclei. Patients with limited disease generally have an excellent prognosis. In the more advanced stages, the prognosis is poor. (WHO, 2001)

**Synonyms:** - CTCL/ Mycosis fungoides - Cutaneous T-cell lymphoma/Mycosis fungoides - MF - Mycosis fungoides - Mycosis fungoides, unspecified site - mycosis fungoides