RT Journal Article SR Electronic T1 Nodular regenerative hyperplasia of the liver: diagnosis by liver biopsy JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1151 OP 1154 VO 122 IS 10 A1 Qizilbash, A. H. A1 Castelli, M. YR 1980 UL http://www.cmaj.ca/content/122/10/1151.abstract AB 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.