咽旁间隙肿瘤的影像学诊断

Imaging diagnosis of tumor in parapharyngeal space

目的：通过对咽旁间隙肿瘤CT、MRI检查资料的分析研究，探讨影像学检查在咽旁间隙肿瘤诊断中的意义。方法：收集1988年1月～2005年1月我科收治的咽旁间隙肿瘤患者138例，咽旁间隙的转移性肿瘤和侵及咽旁间隙的鼻咽癌未计人内。所有病例均作CT或（和）MRI检查。结果：CT和MRI可较好地提供肿瘤的位置、大小、范围、肿瘤的边缘是否光滑及与颈部大血管的关系，为制订手术方案提供重要的参考意见。结论：术前行CT、MRI检查对咽旁间隙肿瘤治疗方案和手术径路的选择有重要意义。

Objective：To investigate the diagnostic value of CT and MRI in tumors of parapharyngeal space （PPS）. Method：The data of one hundred and thirty-eight patients with PPS tumor treated in our department during the period from January, 1988 to January, 2005 were collected and reviewed. Eighty-three men and 55 women were enrolled, not including patients with metastasis tumors in PPS or nasopharyngeal carcinomas invading PPS. The age varies from 7 to 73 yrs（average 44.7 yrs）. Among the patients, 12 were operated for the second time because of recurrence. All the patients were examined by CT or/and MRI. Result：CT and MRI could provide the position, size, confine of the tumor and its relationship with cervical blood vessels well, which were important to operation schemes. Conclusion：CT and MRI before operation are valuable to the treatment of PPS tumors.