Felt D P, Frueh B R
University of Michigan, Ann Arbor.
Ophthalmic Plast Reconstr Surg. 1985;1(2):115-7. doi: 10.1097/00002341-198501020-00008.
A young man presented with symptoms and findings of a chronic partial obstruction of the lacrimal sac outlet. A dacryocystogram revealed a BB in the lower portion of the lacrimal sac where this foreign body was functioning as a ball valve, impeding lacrimal drainage. Surgical removal of the BB and dacryocystorhinostomy were curative. Previously reported foreign bodies in the lacrimal sac have all been endogenous in origin. This is the first reported case of an exogenous foreign body in the lacrimal sac outlet. Exogenous sources of lacrimal sac foreign bodies should be considered in chronic dacryocystitis.
一名年轻男性出现泪囊出口慢性部分阻塞的症状和检查结果。泪囊造影显示泪囊下部有一颗子弹，该异物起到球阀的作用，阻碍泪液引流。手术取出子弹并行泪囊鼻腔吻合术治愈。此前报道的泪囊异物均为内源性。这是首例报道的泪囊出口外源性异物。慢性泪囊炎应考虑泪囊异物的外源性来源。
