口腔恶性肿瘤占全身恶性肿瘤的5～7%,绝大多数为原发肿瘤,继发肿瘤比较罕见,仅占口腔恶性肿瘤的1%。转移瘤可侵犯颌骨或口腔软组织,临床上骨组织较软组织易于发生。恶性肿瘤在颌骨发生的远处转移乃是骨转移的一种。有关颌骨转移瘤文献上屡有报告,且近年来发现较以往为多,应引起注意。统计资料文献中报导的颌骨转移瘤多为个案报 Oral malignant tumors account for 5 to 7% of all malignant tumors in the body. Most of them are primary tumors. Secondary tumors are rare and account for only 1% of oral malignant tumors. Metastases can invade the jaw or oral soft tissue. Clinically, bone tissue is more prone to occur than soft tissue. The distant metastasis of malignant tumors in the jaws is a kind of bone metastasis. The literature on jaw metastasis is frequently reported in the literature and has been found more frequently than in the past. It should attract attention. The jaw bone metastases reported in the statistical literature are mostly case reports.