papilloma

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泪囊肿报告。

A small benign intraductal papilloma appears here in a breast duct, typically in one of the main lactiferous ducts beneath the areola.

图示腺导管中小良性导管内头状，代表性地出现于晕下一个主要输管内。