Non-Hodgkin Lymphoma

**Semantic type:** Neoplastic Process

**Definition:** Distinct from Hodgkin lymphoma both morphologically and biologically, non-Hodgkin lymphoma (NHL) is characterized by the absence of Reed-Sternberg cells, can occur at any age, and usually presents as a localized or generalized lymphadenopathy associated with fever and weight loss. The clinical course varies according to the morphologic type. NHL is clinically classified as indolent, aggressive, or having a variable clinical course. NHL can be of B-or T-/NK-cell lineage.

**Synonyms:** - NHL - NHL - NHL, NOS - Non-Hodgkin lymphoma, NOS - Non-Hodgkin lymphoma, NOS - Non-Hodgkin lymphoma, unspecified site - Non-Hodgkin's Lymphoma - Non-Hodgkin's Lymphoma - Non-Hodgkin's Lymphoma (NHL) - non-Hodgkin lymphoma