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For the past six years, small hepatocellular carcinoma which are smaller than 5cm in diameter have been diagnosed in 15 cases. Diagnostic rates of respective examinations made were as follows: 1) ultrasonography 14/15 (93.3%), 2) angiography 7/14 (50.0%), 3) scintigraphy 4/11(36.4%), 4) AFP 20ng/ml or over 13/15 (86.7%).Ultrasonogram of small hepatocellular carcinoma with liver cirrhosis has been classified into following four type: Type I is defined as low level echo with even internal echoes. Type II is defined as uneven internal echoes and/or with same level of echo. Type III is defined as high level echo with uneven internal echoes. Type IV is defined as low and high level echo area mixed. As a fact, much of ultrasonogram of small hepatocellular carcinoma with liver cirrhosis range in Type I (50.0%) and II (25.0%), but histopathologically, none or very few of fibrous tissue in the Tumor has been found. In Type III (12.5%), numerous septum have been seen macroscopically and also numerous fibrous tissues have been histopathologically seen accordingly. Type IV (12.5%), substantial amount of necrosis has been recongnized macroscopically.
財団法人日本消化器病学会の論文