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口腔及头颈部肿瘤经放疗后可因射线引起下颌骨损伤,其早期临床症状和X线表现与炎症、癌瘤复发及转移性肿瘤有相似之处,容易误诊。本文总结我院15例放射性下颌骨损伤资料,重点讨论放射性下颌骨损伤的X线特点及其防治。资料分析男12例,女3例。年龄在28—62岁之间。15例原发瘤均经病理学证实(鼻咽癌10例,口底癌2例,牙龈癌2例,颊粘膜癌1例)。全部病例都有颈部及颌下淋巴结转移。放疗前肿瘤尚未累及下领骨,放疗后亦无原发瘤复发。本组病例均采用钴常规照射,其中2例加深部X线,3例加电子束治疗,肿瘤量在41.5—111GY之间。
Oral and head and neck cancer by radiotherapy may cause mandibular injury due to radiation, the early clinical symptoms and X-ray findings and inflammation, cancer recurrence and metastatic tumors have similarities, easily misdiagnosed. This article summarizes the data of 15 cases of radioactive mandibular injuries in our hospital, focusing on the X-ray characteristics and prevention and treatment of radioactive mandibular injuries. Data analysis of 12 males and 3 females. The age of 28-62 years old. All the 15 primary tumors were confirmed by pathology (10 cases of nasopharyngeal carcinoma, 2 cases of oral floor carcinoma, 2 cases of gingival carcinoma and 1 case of buccal mucosal carcinoma). All cases had neck and submandibular lymph node metastases. Radiation before the tumor has not been involved under the collarbone, no recurrence of primary tumor after radiotherapy. The patients were treated with conventional cobalt irradiation, including 2 cases of deepening X-ray, 3 cases of electron beam therapy, tumor volume between 41.5-111GY.