title: Adrenaline dacryolith: detection by ultrasound examination of the nasolacrimal duct.
abstract: A 73-year-old woman on topical pilocarpine and adrenaline for chronic simple glaucoma for three years presented with a mass in the medial canthus of the right eye. Although dacryocystography showed a dilated and partially obstructed nasolacrimal system, ultrasound examination was able to demonstrate a mass in the nasolacrimal duct. At operation a black dacryolith was found, of the diameter predicted by ultrasound. Histological examination of the dacryolith suggested its derivation from breakdown products of adrenaline.
authors.affiliation: Department of Ophthalmology, University of Sheffield.
authors.forename: J A
authors.initials: JA
authors.lastname: Bradbury
authors.forename: I G
authors.initials: IG
authors.lastname: Rennie
authors.forename: M A
authors.initials: MA
authors.lastname: Parsons
mesh_terms: D000368:Aged; D004837:Epinephrine / Q000009:adverse effects*; D005260:Female; D005902:Glaucoma, Open-Angle / Q000188:drug therapy; D006801:Humans; D007765:Lacrimal Apparatus; D007766:Lacrimal Apparatus Diseases / Q000139:chemically induced / Q000175:diagnosis; D009301:Nasolacrimal Duct; D014463:Ultrasonography
chemical_list: D004837:Epinephrine