title: [Diagnostic and therapeutic problems of dacryocystolithiasis].
abstract: An uncommon case of a woman with dacryocystolithiasis is reported with results of mineralogical investigation of the stone removed. This stone was found to consist of tricalcium phosphate following its removal by dacryocystorhinostomy. At present dacryocystolithiasis is one of the differential diagnoses of malignant tumors of the paranasal sinuses and lacrimal excretory system.
authors.affiliation: Universitäts-HNO-Klinik Essen.
authors.forename: M
authors.initials: M
authors.lastname: Fischer
authors.forename: M
authors.initials: M
authors.lastname: Schrader
mesh_terms: D000328:Adult; D002130:Calcium Phosphates / Q000032:analysis; D002137:Calculi / Q000737:chemistry / Q000175:diagnosis* / Q000601:surgery; D003608:Dacryocystorhinostomy; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007767:Lacrimal Duct Obstruction / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed
chemical_list: D002130:Calcium Phosphates; C485828:alpha-tricalcium phosphate; C485830:tetracalcium phosphate; C485838:calcium phosphate, monobasic, anhydrous; C020243:calcium phosphate; C485829:calcium phosphate, dibasic, anhydrous
vernacular_title: Diagnostische und therapeutische Probleme der Dakryozystolithiasis.