A group of lymphomas exhibiting clonal expansion of malignant T-lymphocytes arrested at varying stages of differentiation as well as malignant infiltration of the skin. MYCOSIS FUNGOIDES; SEZARY SYNDROME; LYMPHOMATOID PAPULOSIS; and PRIMARY CUTANEOUS ANAPLASTIC LARGE CELL LYMPHOMA are the best characterized of these disorders.

Synonyms: Slack Skin, Granulomatous, Lymphoma, T Cell, Cutaneous, Granulomatous Slack Skin, T-Cell Lymphomas, Cutaneous, Cutaneous T-Cell Lymphoma, Lymphoma, T-Cell, Cutaneous, Cutaneous T-Cell Lymphomas, Lymphoma, Cutaneous T-Cell, Cutaneous T Cell Lymphoma, T Cell Lymphoma, Cutaneous, T-Cell Lymphoma, Cutaneous, Lymphomas, Cutaneous T-Cell