lymphoma non-Hodgkin lymphoma 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. MONDO:0018908 Orphanet:547 non-Hodgkins lymphoma non-Hodgkin's lymphoma (NHL) MEDGEN:6160 MESH:D008228 ICDO:9591/3 non-Hodgkin's lymphoma NHL ONCOTREE:NHL DOID:0060060 MedDRA:10029547 UMLS:C0024305 EFO:0005952 non-Hodgkin lymphoma NCIT:C3211