Metastatic tumours of the mouth and jaws. A review of the Japanese literature

摘要: A review of the Japanese literature revealed 41 well-documented metastatic tumours mouth and jaws. The incidence was 1.5 times higher in females than males 76% were fourth to seventh decades with a mean 44 years. Instead breast which is most frequently encountered site origin Caucasians, uterus followed by lung, kidney stomach primary carcinoma highest incidence. Histologically, carcinomas glandular showed rate metastasis choriocarcinomas. Squamous cell sarcoma unusual. Metastasis occurred gingiva 23 cases bony involvement noted 16 cases. common symptoms swelling, pain, bleeding, paraesthesia loosening teeth. radiographic appearance quite variable no specific diagnostic characteristics. oral lesions treated surgery, irradiation or chemotherapy 32 cases, while treatment carried out seven Prognosis very poor 33 fatal due multiple metastases.