Methods 18 cases of nasopharyngeal angiofibromas were retrospectively analyzed including the location, density ,signal intensity, extension of tumors and changes of surrounding bones.

• 方法回顾性分析18例鼻咽纤维血管瘤的CT和MRI表现,对肿瘤的部位、密度或信号、范围及骨质改变进行分析。