MACROREGENERATIVE NODULES AND HEPATOCELLULAR-CARCINOMA IN 44 SEQUENTIAL ADULT LIVER EXPLANTS WITH CIRRHOSIS

被引:115
作者
THEISE, ND [1 ]
SCHWARTZ, M [1 ]
MILLER, C [1 ]
THUNG, SN [1 ]
机构
[1] CUNY,MT SINAI MED CTR,DEPT SURG,NEW YORK,NY 10029
关键词
D O I
10.1002/hep.1840160416
中图分类号
R57 [消化系及腹部疾病];
学科分类号
摘要
Macroregenerative nodules, also called nodules of adenomatous hyperplasia, have been well documented in Japan. Extensive studies support the hypothesis that in the Japanese population these lesions represent a possible pathway for hepatocarcinogenesis. However, reporting of these lesions in non-Japanese populations has so far been rare. We examined 44 sequential cirrhotic hepatectomy specimens from adult patients who underwent orthotopic liver transplantation at our institution. All livers were serially sectioned every 0.5 cm. Macroregenerative nodules were defined as regenerative nodules at least 1 cm in diameter. Forty-eight macroregenerative nodules were found in 11 livers (25% of livers). The antecedent diseases in these livers included hepatitis C (3), alcoholism (2), primary biliary cirrhosis (2) (one with iron overload), cryptogenic cirrhosis (2), hepatitis B (1) and alpha1-antitrypsin deficiency (1). The macroregenerative nodules often differed from the surrounding nodular parenchyma in color, texture or the degree to which they bulged beyond the cut liver surface. Three livers contained grossly apparent hepatocellular carcinomas. Microscopically, macroregenerative nodules could be classified as those with (type 2) and without (type 1) dysplasia. Four livers had type 1 lesions, two had type 2 lesions and five had lesions of both types. We found 36 type 1 lesions in all and 12 type 2 lesions, 3 containing foci of microscopic carcinoma. All hepatocellular carcinomas arose in livers containing macroregenerative nodules (either type). Liver cell dysplasia, large-cell or small-cell, was observed in cirrhotic nodules of 27 livers. Microscopic or macroscopic hepatocellular carcinoma occurred in three livers with large-cell but not small-cell dysplasia and in one liver without dysplasia. We conclude that macroregenerative nodules are common in non-Japanese cirrhotic patients, occur in a wide range of chronic liver diseases and may represent precancerous lesions in this population.
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页码:949 / 955
页数:7
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