Conclusions: At present, endoscopic sphenoidotomy is the mainstay of treatment for isolated sphenoid sinusitis.

但有免疫缺陷疾病者，容易发眼窝和颅内合，较差。

The postoperative pathology showed 7 cases with sphenoid sinustis, 2 cases with submucous cystis, 3 cases with mycosis.

术病理慢性7例，囊肿2例，霉菌性3例。

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。