网友正在提问
口腔癌是发生在口腔的恶性肿瘤之总称，大部分属于鳞状上皮细胞癌，即所谓的黏膜发生变异。在临床实践中口腔癌包括牙龈癌、舌癌、软硬腭癌、颌骨癌、口底癌、口咽癌、涎腺癌、唇癌、和上颌窦癌以及发生于颜面部皮肤黏膜的癌症等。口腔癌是头颈部较常见的恶性肿瘤之一。
{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'}
