惡性腫瘤轉移至口腔只佔所有口腔惡性腫瘤的百分之一，而轉移至口腔軟組織更是罕見。本文的目的是回朔性探討一系列（共五例），發生於高雄醫學大學口腔病理科之口腔軟組織惡性轉移的病例，就病患之年齡、性別，原發腫瘤與口腔軟組織轉移的位置及組織學，發生轉移及追蹤至死亡的時間加以分析。家庭牙醫師可能就病人仍未發現其他器官的惡性腫瘤而首先遇到其口腔轉移病灶，所以，雖然罕見，口腔惡性腫瘤的鑑別診斷，應包括惡性轉移，尤其是如果病人於其他位置已發現有癌症。惡性腫瘤轉移至口腔只佔所有口腔惡性腫瘤的百分之一，而轉移至口腔軟組織更是罕見。本文的目的是回朔性探討一系列（共五例），發生於高雄醫學大學口腔病理科之口腔軟組織惡性轉移的病例，就病患之年齡、性別，原發腫瘤與口腔軟組織轉移的位置及組織學，發生轉移及追蹤至死亡的時間加以分析。家庭牙醫師可能就病人仍未發現其他器官的惡性腫瘤而首先遇到其口腔轉移病灶，所以，雖然罕見，口腔惡性腫瘤的鑑別診斷，應包括惡性轉移，尤其是如果病人於其他位置已發現有癌症。

Tumors that metastasize to the oral cavity, comprising only about 1% of all oral malignant neoplasms, rarely affect oral soft tissues. The aim of the present case series report is to retrospective study five patients with metastatic tumors to oral soft tissues, retrieved from an institution in southern Taiwan. The age, gender, sites and histological types of the primary tumor, sites of the oral soft tissue metastases, and time of occurrence of metastasis as well as follow-up data of these five cases were analyzed. A dental practitioner, particularly a family dentist, may encounter with patients who have metastatic oral tumors before the primary malignancy from other organs has been identified. Although rare, metastatic tumors should be included in the differential diagnosis of an intraroal malignant neoplasm, particularly if the patient has cancer at another site.