title: Involvement of the central nervous system in non-Hodgkin's lymphoma.
abstract: Twenty-four patients with non-Hodgkin's lymphoma and CNS involvement are presented. There were 7 cases with diffuse histiocytic lymphoma (HL), 9 with diffuse poorly differentiated lymphocytic lymphoma (PDLL-D), of whom 6 patients were in leukemic conversion, 5 patients with nodular poorly differentiated lymphocytic lymphoma (PDLL-N), and 3 cases with undifferentiated lymphoma (UL). CNS complications were noted only in Stage IV lymphoma; the prognosis was generally poor. Histiocytic lymphoma was associated with widespread parenchymatous infiltration, whereas PDLL was usually associated with leptomeningeal seeding. The clinical course and the neuropathologic findings are discussed.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001932:Brain Neoplasms / Q000473:pathology*; D002648:Child; D005260:Female; D006801:Humans; D008223:Lymphoma / Q000134:cerebrospinal fluid / Q000473:pathology*; D016403:Lymphoma, Large B-Cell, Diffuse / Q000473:pathology; D008228:Lymphoma, Non-Hodgkin / Q000473:pathology; D008297:Male; D008875:Middle Aged; D013120:Spinal Cord Neoplasms / Q000473:pathology*