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AIM:To compare the histologic features of the liver in intrahepatic neonatal cholestasis(IHNC)with infectious,genetic-endocrine-metabolic,and idiopathic etiologies. METHODS:Liver biopsies from 86 infants with IHNC were evaluated.The inclusion criteria consisted of jaundice beginning at 3 mo of age and a hepatic biopsy during the 1st year of life.The following histologic features were evaluated:cholestasis,eosinophilia,giant cells,erythropoiesis,siderosis,portal fibrosis,and the presence of a septum. RESULTS:Based on the diagnosis,patients were classified into three groups:group 1(infectious;n=18),group 2(genetic-endocrine-metabolic;n=18),and group 3(idiopathic;n=50).There were no significant differences with respect to the following variables:cholestasis,eosinophilia,giant cells,siderosis,portalfibrosis,and presence of a septum.A significant difference was observed with respect to erythropoiesis,which was more severe in group 1(Fisher’s exact test,P=0.016). CONCLUSION:A significant difference was observed in IHNC of infectious etiology,in which erythropoiesis was more severe than that in genetic-endocrine-metabolic and idiopathic etiologies,whereas there were no significant differences among cholestasis,eosinophilia,giant cells,siderosis,portal fibrosis,and the presence of a septum.
METHODS: Liver biopsies from 86 infants with IHNC were evaluated. The content criteria consisted of jaundice beginning at 3 mo of age and a hepatic biopsy during the 1st year of life the following histologic features were evaluated: cholestasis, eosinophilia, giant cells, erythropoiesis, siderosis, portal fibrosis, and the presence of a septum. RESULTS: Based on the diagnosis, patients were classified into three groups: group 1 (infectious; n = 18), group 2 (genetic-endocrine-metabolic; n = 18), and group 3 (idiopathic; n = 50) the following variables: cholestasis, eosinophilia, giant cells, siderosis, portal fibrosis, and presence of a septum. A significant difference was observed with respect to erythropoiesis, which was more severe in group 1 (Fisher’s exact test, P = 0.016). CONCLUSION: A significant dif ference was observed in IHNC of infectious etiology, in which erythropoiesis was more severe than that in genetic-endocrine-metabolic and idiopathic etiologies, there there were no significant differences among cholestasis, eosinophilia, giant cells, siderosis, portal fibrosis, and the presence of a septum.