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Examples Gene: MT-ND1, POLG, Region: M:1-1000 Variant: m.8993T>G, 1:g.10042757T>C rs3888511 MSCV_0000006, ClinVar: RCV000000015, Disease: Leigh syndrome, Phenotype: Retinopathy

Disease Browser
Parent Node: Lacrimal Apparatus Diseases (D007766)
..Starting node ..Lacrimal Duct Obstruction (D007767)
Child Nodes:
........Chitty Hall Baraitser syndrome (C535928)
........HYPERTELORISM, PREAURICULAR SINUS, PUNCTAL PITS, AND DEAFNESS (OMIM:614187)
........Propping Zerres syndrome (C538052)
Sister Nodes:
..Alacrima (C562827)
..Alacrima, Congenital (C566307)
..Aplasia of Lacrimal and Salivary Glands (C562407)
..Dacryocystitis (D003607) 2
..Dry Eye Syndromes (D015352) 5
..Lacrimal Duct Obstruction (D007767) 3
..Lacrimal Puncta, Absence of (C566703)
..Lacrimoauriculodentodigital syndrome (C538132)
Human Disease MESH is developed by UMLS. Further data from MedGen, OMIM, CTD

Term ID:	6166
Name:	Lacrimal Duct Obstruction
Definition:	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)
Alternative IDs:
ParentIDs:	MESH:D007766
TreeNumbers:	C11.496.456
Synonyms:	Duct Obstruction, Lacrimal \|Duct Obstructions, Lacrimal \|Lacrimal Duct Obstructions \|Obstruction, Lacrimal Duct \|Obstructions, Lacrimal Duct
Slim Mappings:	Eye disease
Reference:	MedGen: D007767 MeSH: D007767 OMIM: Genes:
Phenotypes
Disease Causing ClinVar Variants