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目的 进一步准确认识鼻咽癌(NPC)的影像表现。方法 收集本院经病理确诊的24 例NPC患者,在治疗前都做CT和MRI检查。结果 24例NPC原发灶,伴有颅内占位6例,其中前颅窝病变1例,中颅窝3例,后颅窝2例。颅底骨质破坏8例。颈部淋巴结肿大6例。结论 CT和MRI检查都可显示原发灶及鼻咽癌颅内侵犯的部位、途径及范围,有助于临床分期及指导放射野的设置。由于MRI具有比CT更高的软组织分辨力,故MRI检查对病变早期的显示和颅内病变的显示更优越于CT检查。
Objective To further understand the imaging features of nasopharyngeal carcinoma (NPC). Methods Totally 24 patients with pathologically diagnosed NPC were enrolled in this study. CT and MRI were performed before treatment. Results Twenty-four NPC primary lesions were found with intracranial space-occupying in 6 cases, including 1 case of anterior cranial fossa, 3 cases of middle cranial fossa and 2 cases of posterior fossa. Skull bone destruction in 8 cases. Neck lymph nodes in 6 cases. Conclusion Both CT and MRI can show the location, the way and the scope of intracranial invasion of primary tumor and nasopharyngeal carcinoma, and contribute to the setting of clinical staging and guidance of radiation field. Because MRI has a higher resolution of soft tissue than CT, MRI is superior to CT in displaying early lesions and intracranial lesions.