Pagetoid Reticulosis

**Semantic type:** Neoplastic Process

**Definition:** A variant of mycosis fungoides, characterized by an exclusively intraepidermal atypical (cerebriform) lymphocytic infiltrate. Patients present with a localized psoriasiform or hyperkeratotic patch or plaque, usually in the extremities. Extracutaneous dissemination of the disease has never been reported.

**Synonyms:** - Pagetoid reticulosis