A tumor was found involving the left maxillary sinus and extending into the left parapharyngeal space and skull base;metastativ HCC was impressed.Both patients received radiotherapies.

• 例2为一肝癌病患，曾估过五次经动脉栓塞治疗，后在左脸上颌部发现一肿块，影像学检查发现左上颌窦肿瘤并侵犯至侧咽及颅底。