目的：探讨头颈部肿瘤放射治疗后诱发第二恶性肿瘤的诊断、机理及治疗方法。
Objective:To investigate the clinical diagnosis, mechanism and treatment for second malignant tumors (SMTs) of head and neck induced by radiotherapy.
放射治疗和手术切除后组织瓣移植修复是当今口腔颌面外科临床上针对恶性肿瘤常采取的主要治疗手段。
Nowadays radiotherapy and repair by tissue flap grafting after excision are major therapeutic measures for it in oral and maxillofacial surgery.
方法：回顾性分析了我科18例头颈部肿瘤放射治疗后诱发第二恶性肿瘤的临床资料。
Methods:18 cases of SMTs of head and neck following radiotherapy were studied retrospectively.
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