Search on: LACRIMAL DUCT OBSTRUCTION 
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Descriptor English:   Lacrimal Duct Obstruction 
Descriptor Spanish:   Obstrucción del Conducto Lagrimal 
Descriptor Portuguese:   Obstrução dos Ductos Lacrimais 
Synonyms English:   Tear Duct Obstruction
Duct Obstruction, Lacrimal
Duct Obstruction, Tear
Duct Obstructions, Lacrimal
Duct Obstructions, Tear
Lacrimal Duct Obstructions
Obstruction, Lacrimal Duct
Obstruction, Tear Duct
Obstructions, Lacrimal Duct
Obstructions, Tear Duct
Tear Duct Obstructions  
Tree Number:   C11.496.456
Definition English:   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) 
Entry Combination - descr/qualif English:   Lacrimal Duct Obstruction/surgery use Dacryocystorhinostomy
 
Allowable Qualifiers English:  
BL blood CF cerebrospinal fluid
CI chemically induced CL classification
CO complications CN congenital
DI diagnosis DG diagnostic imaging
DH diet therapy DT drug therapy
EC economics EM embryology
EN enzymology EP epidemiology
EH ethnology ET etiology
GE genetics HI history
IM immunology ME metabolism
MI microbiology MO mortality
NU nursing PS parasitology
PA pathology PP physiopathology
PC prevention & control PX psychology
RT radiotherapy RH rehabilitation
TH therapy UR urine
VE veterinary VI virology
Record Number:   7944 
Unique Identifier:   D007767 

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