lacrimal fistula

lac·ri·mal fis·tu·la

, fistula lacrimalis
an abnormal opening into a tear duct or the lacrimal sac.
References in periodicals archive ?
A congenital lacrimal fistula is a rare developmental anomaly, usually unilateral.
A congenital lacrimal fistula is a rare developmental anomaly that is caused by an interruption in the embryogenesis of the nasolacrimal system.
The presence of a lacrimal fistula is an indication to search for a variety of underlying systemic and ocular anomalies.
No other systemic, nasal, or ocular anomalies were found, and no family member had a lacrimal fistula.
Cases of congenital lacrimal fistula are rare; when they do occur, they are usually unilateral.
The incidence of congenital lacrimal fistula is estimated to be 1 in 2,000 births.
Congenital lacrimal fistula can be associated with other abnormalities, such as preauricular fistula, hypospadias, and VACTERL association (vertebral abnormalities, anal atresia, cardiac malformations, tracheoesophageal fistula, renal abnormalities, and limb abnormalities).
A wide range of treatment modalities for symptomatic congenital lacrimal fistula has been discussed in the literature.