观察150例颅部的上颌窦、蝶窦区及颅底的冠状层面X线片。每隔1/2厘米摄片一张,因与实际数差别不大,可直接在片上测量大小。病人年龄16—86岁。颅部层面X线片分为肿瘤组及非肿瘤组,前者包括50例经组织切片诊断为良性或恶性肿瘤,后者为外伤或感染病例。测量各颅孔的内径。以1/2毫米为基数。圆孔位于蝶骨大翼根部.在眶上裂之下,翼管之 150 cases of cranial maxillary sinus, sphenoid sinus and skull base coronal plane X-ray. Every 1/2 centimeters a film, because the difference between the actual number is not large, can be measured directly on the chip size. The patient is 16-86 years of age. The skull radiographs were divided into tumor group and non-tumor group. The former included 50 cases of benign or malignant tumors diagnosed by histological section, and the latter cases of trauma or infection. Measure the internal diameter of each cranial hole. Base on ½ millimeter. The circular hole is located at the root of the sphenoid big wing, under the superior orbital fissure, the wing tube