To report two cases of rare primary lacrimal sac tumor-one of inverted papilloma and the other of hemangiopericytoma.

提出两例罕见上皮性和非上皮性瘤报告。

Dacryocystography was preformed in all patients before operation to confirm the obstructive sity and the size of lacrimal sac.

前造影以了解大小和阻塞部位，以选择最手适应证。

Method The clinical data of 15 cases with chronic dacryocystisis accepted dacryocystorhinostomy through nasal cavity and lacrimal sac were analyzed retrospectively.

回顾分析经鼻内窥镜下鼻腔吻合治疗慢性炎15例临床资料。