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本文分析29例颞骨放射性骨坏死,可分为以下两种临床类型:其一为颞骨鼓部的局限性病变,死骨自然分离后可望愈合;另一型为颞骨的较广泛坏死,易侵犯附近器官,特别易侵及脑、迷路及面神经,其次为腮腺及颞颌关节。前一类型多发生于颞骨位于放射野的周边;如治疗的放射线正对颞骨,则易并发弥漫性病变。用高电压机进行放疗,并不能避免这种并发症,可在放疗疗程结束后20年之久才出现症状。
This article analyzes 29 cases of radioactive bone necrosis of the humerus, which can be divided into the following two clinical types: one is the localized lesion of the zygomatic drum, and the natural separation of the sequestrum is expected to heal; the other is the more extensive necrosis of the humerus, which is easy to invade. Near organs, especially vulnerable to brain, labyrinth and facial nerve, followed by parotid gland and temporomandibular joint. The former type mostly occurs in the periphery of the radiation field in the sacrum; if the treated radiation is directly opposite to the sacrum, diffuse lesions are easily complicated. Radiotherapy using a high-voltage machine does not prevent this complication. Symptoms may occur only 20 years after the end of the radiotherapy course.