Chen L.-J.SHU-LANG LIAOKao S.C.S.CHEN-TU WUHou P.-K.MUH-SHY CHEN2021-09-042021-09-0419980740-9303https://www.scopus.com/inward/record.uri?eid=2-s2.0-0031731169&doi=10.1097%2f00002341-199811000-00008&partnerID=40&md5=dc4be057259d201725db04b8b9ca673ahttps://scholars.lib.ntu.edu.tw/handle/123456789/581699Oncocytic tumors of the lacrimal sac are very rare, with only 21 cases documented in the world literature. The authors report a 75-year-old woman who sought treatment for recurrent dacryocystitis and a palpable mass in the left medial canthal area. The patient underwent surgery for removal of a suspected lacrimal Sac cancer, but pathologic findings indicated benign oncocytic adenomatous hyperplasia. Complete removal of the tumor and long- term follow-up are necessary in patients with lacrimal sac oncocytic lesions. The authors discuss the characteristic features of ocular adnexal oncocytic lesions and review the literature.[SDGs]SDG3adenoma; aged; article; case report; clinical feature; dacryocystitis; eye surgery; female; human; lacrimal sac; priority journal; tumor localizationjournal article10.1097/00002341-199811000-0000898425642-s2.0-0031731169