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本文报道了３８例鼻咽癌放疗后的ＭＲＩ表现。鼻咽壁变光整２４例，增厚变形１４例。咽旁间隙消失１１例，翼肌模糊３例，翼腭窝不清２例，颞下窝不清１例。颈动脉鞘受累１５例，颈深淋巴结肿大５例。破裂孔破坏８例，斜坡破坏６例，卵圆孔破坏５例，颈静脉孔破坏４例，颅中窝广泛破坏８例。蝶窦和海绵窦侵犯７例，眶尖受累４例。放射性脑病５例，脑转移瘤１例。继发鼻副窦炎２０例。结合文献，对鼻咽癌放疗后的病理改变及其ＭＲＩ表现特点，进行了评价。认为采用ＭＲＩ来评估鼻咽癌疗效、发现复发瘤和并发症等，具有很好价值。
This article reported the MRI performance of 38 cases of nasopharyngeal carcinoma after radiotherapy. The nasopharyngeal wall was transformed into 24 cases and thickened and deformed in 14 cases. The parapharyngeal space disappeared in 11 cases, the psoriasis was blurred in 3 cases, the pterygopalatine fossa was unclear in 2 cases, and the infratemporal fossa was unclear in 1 case. Carotid sheath was involved in 15 cases, deep cervical lymph nodes in 5 cases. There were 8 cases of ruptured holes, 6 cases of slope destruction, 5 cases of oval hole destruction, 4 cases of jugular foramen destruction, and 8 cases of extensive destruction of the middle cranial fossa. Sphenoid sinus and cavernous sinus were invaded in 7 cases, and axillary apex was involved in 4 cases. Radiation brain disease in 5 cases, brain metastases in 1 case. Secondary nasal sinusitis in 20 cases. Combined with the literature, the pathological changes and MRI features of nasopharyngeal carcinoma after radiotherapy were evaluated. It is considered that using MRI to evaluate the efficacy of nasopharyngeal carcinoma and to find recurring tumors and complications is of great value.