原发于颌骨及其周围组织的恶性肿瘤是常见的,而口腔软组织的转移性损害则很少见。口腔的转移癌多见于上下颌骨,转移至软组织的很少见。转移灶可在原发性损害被发现之前被查见,或在原发灶已存数年后,偶尔被查见。 Malignancies that are common in the jaws and surrounding tissue are common, and metastatic lesions in the oral soft tissues are rare. Oral metastatic cancer is more common in upper and lower jaws, and metastases to soft tissues are rare. Metastatic lesions can be spotted before primary damage is discovered, or occasionally after the primary lesion has been stored for several years.