umls-concept:C0079773 | skos:definition | MSH: 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.,NCI: Any of a group of T-cell non-Hodgkin lymphomas that begins in the skin as an itchy, red rash that can thicken or form a tumor. The most common types are mycosis fungoides and Sezary syndrome.,NCI: A T-cell non-Hodgkin lymphoma arising from the skin. Representative examples include mycosis fungoides and primary cutaneous anaplastic large cell lymphoma. | lld:umls |