title: Nodular regenerative hyperplasia of the liver: diagnosis by liver biopsy.
abstract: Specimens of liver obtained by needle biopsy from two patients with rheumatoid arthritis showed features of nodular regenerative hyperplasia. In one patient the nodularity was apparent on gross examination of the specimen. Portal hypertension was present in the other patient. The cause and pathogenesis of the disorder are poorly understood.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000150:complications / Q000473:pathology*; D001707:Biopsy, Needle; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D006965:Hyperplasia; D008099:Liver / Q000473:pathology*; D008103:Liver Cirrhosis / Q000473:pathology; D008107:Liver Diseases / Q000209:etiology / Q000473:pathology*; D008115:Liver Regeneration; D008875:Middle Aged