慢性根尖炎是口腔科常见病。上侧切牙致密性骨炎包块显于鼻翼附着处,常首诊于耳鼻咽喉科。现就2例就诊2年多,而误诊病例分析如下。例1　女,23岁。因右鼻翼附着处皮下包块1月、于95年3月来我科门诊就诊。检查见右鼻翼附着处皮下包块3×2cm,质硬无压痛不活动、鼻通气好、各鼻道无 Chronic apical inflammation is a common disease in dentistry. On the side of the incision dense osteitis mass was attached to the nose, often the first clinic in the Department of Otorhinolaryngology. 2 cases are now treated for more than 2 years, while misdiagnosed cases are as follows. Example 1 Female, 23 years old. Due to the attachment of the right nostril subcutaneous mass in January, in March 1995 to our clinic. Check see the right nose attached to the subcutaneous mass 3 × 2cm, hard no tenderness inactivity, good nasal ventilation, the nasal passages without