患者,男,15岁,自出生时发现三鼻孔。入院体检:右侧鼻腔结构正常,通气好,右鼻翼组织部分缺损,其上方见多余鼻孔,孔径0.4 cm×0.3 cm,深2 cm,不与鼻腔相通,有少许黏液性分泌物,左侧鼻腔结构正常,鼻后孔闭锁。鼻窦CT扫描示:左侧鼻后孔骨性闭锁,右上颌窦变小。全身麻醉后鼻内镜下在 Patient, male, 15 years old, found three nostrils since birth. Admission physical examination: the right nasal structure is normal, good ventilation, the right part of the right atrial tissue defects, the top of the see excess nostrils, the diameter of 0.4 cm × 0.3 cm, 2 cm deep, not with the nasal cavity, a little mucous secretions, the left nasal cavity Structure is normal, the posterior orifice of the nose is blocked. Sinus CT scan shows: the left posterior orifice of the bony atresia, right maxillary sinus smaller. Nasal endoscopy under general anesthesia