Dacryocystography.
D000190:Actinomyces; D000328:Adult; D000368:Aged; D002404:Catheterization; D003607:Dacryocystitis / Q000000981:diagnostic imaging* / Q000382:microbiology; D005260:Female; D006801:Humans; D007765:Lacrimal Apparatus / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D007767:Lacrimal Duct Obstruction / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011859:Radiography; D013679:Technology, Radiologic