Methods:14 patients with chronic otitis media and 14 with cholestatoma proved by surgically were scanned with HRCT. The authors put especially attention to the erosion of scutum and attic lateral wall.

• 方法 :对手术证实的 14例慢性中耳炎和 14例中耳胆脂瘤的病人进行 HRCT扫描 ,着重观察盾板和上鼓室外侧壁骨质改变。