Abstract: | The distinctive clinical features and natural history of mycosis fungoides, an epidermotropic variant of cutaneous T-cell lymphoma, are presented. These findings are compared with certain non-mycosis fungoides T-cell lymphomas that occasionally occur in the skin. Clinical staging and evaluation of patients with cutaneous lesions including plaques, tumors, or erythroderma, with or without nodal involvement and disseminated disease, are considered. Associated disorders such as follicular mucinosis, actinic reticuloid, lymphomatoid papulosis, and secondary primary malignancies are also presented. |