papilloma

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

提出两例罕见上皮和非上皮泪囊肿瘤报告。

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

图示乳腺导管中小良导管内乳头状瘤，代出现于乳晕下一个主要输乳管内。