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微小肝癌亦称细小肝癌或亚临床肝癌,目前尚无统一标准,最早在1975年石川首次提出肿瘤如为一个而最大直径在5cm内,如有数个者则最大直径在4cm以内。稍后Okada则认为肿瘤为一个而直径4.5cm以
Small liver cancer is also called small liver cancer or subclinical liver cancer. There is no uniform standard at present. In 1975, Ishikawa first proposed a tumor with a maximum diameter of 5 cm. If there are several, the maximum diameter is within 4 cm. Okada later thought the tumor was one and 4.5cm in diameter