Biomaterial Database

Nuclear dacryoscintigraphy: its role in oral and maxillofacial surgery. 1995

V B Ziccardi, and M Charron, and M W Ochs, and T W Braun

Department of Oral and Maxillofacial Surgery, Mt. Sinai School of Medicine, New York, NY 11373, USA.

Obstruction of the lacrimal drainage apparatus may result in excessive tearing or epiphora. This may occur as a result of a traumatic injury or accumulation of debris, mucus, or pus. In nuclear dacryoscintigraphy, a radioactive solution is introduced into the conjunctival sac by pipette and allowed to follow the flow of the tear solution through the lacrimal drainage system. This article will review normal lacrimal anatomy and indications for nuclear dacryoscintigraphy in oral and maxillofacial surgery.

UI	MeSH Term	Description	Entries
D007765	Lacrimal Apparatus	The tear-forming and tear-conducting system which includes the lacrimal glands, eyelid margins, conjunctival sac, and the tear drainage system.	Lacrimal Gland,Nasolacrimal Apparatus,Conjunctival Sacs,Lacrimal Ducts,Lacrimal Punctum,Lateral Canthus,Medial Canthus,Apparatus, Lacrimal,Apparatus, Nasolacrimal,Canthus, Lateral,Canthus, Medial,Conjunctival Sac,Duct, Lacrimal,Gland, Lacrimal,Lacrimal Duct,Lacrimal Glands,Lacrimal Punctums,Punctum, Lacrimal,Sac, Conjunctival
D007767	Lacrimal Duct Obstruction	Interference with the secretion of tears by the lacrimal glands. Obstruction of the LACRIMAL SAC or NASOLACRIMAL DUCT causing acute or chronic inflammation of the lacrimal sac (DACRYOCYSTITIS). It is caused also in infants by failure of the nasolacrimal duct to open into the inferior meatus and occurs about the third week of life. In adults occlusion may occur spontaneously or after injury or nasal disease. (Newell, Ophthalmology: Principles and Concepts, 7th ed, p250)	Nasolacrimal Duct Obstruction,Tear Duct Obstruction,Duct Obstruction, Lacrimal,Duct Obstruction, Nasolacrimal,Duct Obstruction, Tear,Lacrimal Duct Obstructions,Nasolacrimal Duct Obstructions,Obstruction, Lacrimal Duct,Obstruction, Nasolacrimal Duct,Obstruction, Tear Duct,Tear Duct Obstructions
D011877	Radionuclide Imaging	The production of an image obtained by cameras that detect the radioactive emissions of an injected radionuclide as it has distributed differentially throughout tissues in the body. The image obtained from a moving detector is called a scan, while the image obtained from a stationary camera device is called a scintiphotograph.	Gamma Camera Imaging,Radioisotope Scanning,Scanning, Radioisotope,Scintigraphy,Scintiphotography,Imaging, Gamma Camera,Imaging, Radionuclide
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013670	Sodium Pertechnetate Tc 99m	A gamma-emitting radionuclide imaging agent used for the diagnosis of diseases in many tissues, particularly in the gastrointestinal system, cardiovascular and cerebral circulation, brain, thyroid, and joints.	Pertechnetate Sodium,Tc 99m-Pertechnetate,Technetium Tc 99m Pertechnetate,99Tc-Pertechnetate,99TcmO4,99mTcO4,Pertechnetate,Technetium Pertechnetate,Technetium Tc 99m O(4),Technetium-99mTc-pertechnetate,99Tc Pertechnetate,99m-Pertechnetate, Tc,Pertechnetate, Technetium,Sodium, Pertechnetate,Tc 99m Pertechnetate,Technetium 99mTc pertechnetate