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肝癌即肝臟惡性腫瘤，可分為原發(fā)性和繼發(fā)性兩大類(lèi)。原發(fā)性肝臟惡性腫瘤起源于肝臟的上皮或間葉組織，前者稱(chēng)為原發(fā)性肝癌，是我國(guó)高發(fā)的，危害極大的惡性腫瘤；后者稱(chēng)為肉瘤，與原發(fā)性肝癌相比較較為少見(jiàn)。繼發(fā)性或稱(chēng)轉(zhuǎn)移性肝癌系指全身多個(gè)器官起源的惡性腫瘤侵犯至肝臟。一般多見(jiàn)于胃、膽道、胰腺、結(jié)直腸、卵巢、子宮、肺、乳腺等器官惡性腫瘤的肝轉(zhuǎn)移。
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{elseif $category['dir'] == 'jrsy' or $category['dir'] == 'xingbingke' or $category['dir'] == 'flxndy' or
$category['dir'] == 'meidu' or $category['dir'] == 'linbing' or $category['dir'] == 'szqpz' or $category['dir'] ==
'ruxiagan' or $category['dir'] == 'xbxlbryz' or $category['dir'] == 'shengzhiqinzjb' or $category['dir'] == 'nxjrsy'
or $category['dir'] == 'nvxingjrsy' or $category['dir'] == 'waiyinjrsy' or $category['dir'] == 'gangzhoujrsy' or
$category['dir'] == 'maodichongbing' or $category['dir'] == 'qianfumeidu' or $category['dir'] == 'xiantianxingmeidu'
or $category['dir'] == 'shenjingmeidu' or $question['id'] == '300855'}
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