1. Conclusions: At present, endoscopic sphenoidotomy is the mainstay of treatment for isolated sphenoid sinusitis.
   但有免疫缺陷疾病者，容易并发眼窝和颅内合并症，预后较差。
2. The postoperative pathology showed 7 cases with sphenoid sinustis, 2 cases with submucous cystis, 3 cases with mycosis.
   术后病理慢性蝶窦炎7例，蝶窦囊肿2例，霉菌性蝶窦炎3例。
3. A, the sublabial approach is directed under the lip and submucosally along the side of the nasal septum to the face of the sphenoid.
   唇下入路是在唇下沿着鼻中隔粘膜下分离到蝶窦。

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