Source:http://linkedlifedata.com/resource/umls/id/C0855139
NCI: A primary nodal B-cell non-Hodgkin lymphoma which morphologically resembles lymph nodes involved by marginal zone lymphomas of extranodal or splenic types, but without evidence of extranodal or splenic disease. This is a rare entity, and most patients present with localized or generalized lymphadenopathy. The clinical course is indolent. (WHO, 2001)