Purpose: To report two cases of rare primary lacrimal sac tumor-one of inverted papilloma and the other of hemangiopericytoma.
Purpose: To report two cases of rare primary lacrimal sac tumor-one of inverted papilloma and the other of hemangiopericytoma.
摘要目的：提出两例罕见的上皮性和非上皮性泪囊肿瘤报告。