New aspects of the clinicopathological features and treatment of mycosis fungoides and Sézary syndrome.

Mycosis fungoides and Sézary syndrome are T-helper (Th)2-skewed cutaneous lymphomas. The clinical course of mycosis fungoides is classically indolent, manifesting as patches, plaques and tumors. Along with their progression, Th2 dominance tends to be accelerated. In this review, we discuss the epidemiology, clinicopathogenetic features and therapeutic approaches in mycosis fungoides and Sézary syndrome.