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The Korean Journal of Pathology 1973;7(2): 103-109.
실험적 증식성 간결절과 간거대세포 현상과의 상관관계에 관한 연구
Experimental Studies on Relationship between Hyperplastic Hepatic Nodule and Hepatic Megalocytosis of the Liver
ABSTRACT
Experimental induction of hyperplastic hepatic nodules was carried out by administration of p-dimethylaminoazobenzene in rats, to correlate with hepatic megalocytosis and to clarify sequence of precancerous lesion. Hyperplastic hepatic nodules and megalocytosis were induced in most of rats following administration of p-DAB : megalocytosis developed during the initial phase (before the 12th wk) of carcinogenesis, and showed a tendency to spread panlobularly from periportal distribution. Those paralleled with increase of compensatory mitotic index following hepatic cell damages by ingestion of p-DAB. Megalocytic index diminished during the phase of hyperplastic nodules and hepatocellular carcinomas, and illustrated no direct relationship with carcinogenesis. Number of hyperplastic nodules regressed with prolongation of experimental duration after cessation of administrating p-DAB. There was a strong evidence to indicate that megalocytosis and compensatory proliferation of hepatocytes would preceed in the p-DAB induced hepatic carcinogenesis and the latter only undergoes into precancerous phase of hyperplastic hepatic nodule.
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