Congenital lacrimal fistulas, also known as lacrimal anlage ducts, are supernumerary lacrimal canaliculi that connect the skin to the common canaliculus or the lacrimal sac (Figure 1). [1] These rare developmental abnormalities often lead to epiphora.
Is congenital lacrimal fistula common?
Congenital lacrimal fistula is a rare developmental con dition. Patients may be asymptomatic or have tearing from the fistula, the eye or both.
What causes a lacrimal fistula?
Introduction A congenital lacrimal fistula is a rare developmental anomaly that is caused by an interruption in the em- bryogenesis of the nasolacrimal system. While it is often asymptomatic, some patients present with epiphora or discharge that requires surgical intervention.
How do you get rid of lacrimal fistula?
Conclusions: Congenital lacrimal fistulae may be successfully treated with simple excision alone in most cases. Adjunctive DCR or intubation can be reserved for those identified to have lacrimal outflow tract abnormalities.
How rare is a lacrimal fistula?
Congenital lacrimal fistula is a rare developmental abnormality of the lacrimal system with an estimated incidence of one in 2,000 births [4].
Why do I have a small hole near my eye?
The tiny hole at the inner corner of each eye leads to the lacrimal duct, which drains tears from your eye into your nose. When the duct becomes blocked, it can become inflamed or infected.
Why was I born with a hole next to my eye?
A congenital lacrimal fistula is a rare developmental anomaly of the lacrimal system typically located in the inferomedial aspect of the medial canthus. The fistulae can originate from common canaliculus, lacrimal sac or nasolacrimal duct of skin.
Why was I born with a hole near my eye?
The most common differential diagnosis would be congenital nasolacrimal duct obstruction or stenosis attributed to failure of the opening of the lacrimal duct at birth. Dacryostenosis is commonly attributed to an imperforate membrane at the valve of Hasner.
What fistula means?
A fistula is an abnormal connection via a tunnel-like hole between two organs or vessels. Fistulas can occur in various parts of the body.
Why is there a small hole near my eye?
The tiny hole at the inner corner of each eye leads to the lacrimal duct, which drains tears from your eye into your nose.
What is a fistula near eye?
A carotid-cavernous sinus fistula (CCF) is an abnormal connection between an artery in your neck and the network of veins at the back of your eye. These veins at the back of your eye transport blood from your face and brain back to your heart and are located in small spaces behind your eyes called cavernous sinuses.
How common is lacrimal fistula?
Congenital lacrimal fistulas are developmental, rudimentary, supernumerary lacrimal canaliculi connecting skin to common canaliculus or lacrimal sac. These fistulas are located inferonasally from the medial canthus and are unilateral, but bilateral cases have been reported. The incidence is 1 in 2000.
What is a lacrimal fistula?
Disease Entity. Congenital lacrimal fistulas, also known as lacrimal anlage ducts, are supernumerary lacrimal canaliculi that connect the skin to the common canaliculus or the lacrimal sac (Figure 1). These rare developmental abnormalities often lead to epiphora.
What is lacrimal Anlage duct?
Congenital lacrimal fistulas, also known as lacrimal anlage ducts, are supernumerary lacrimal canaliculi that connect the skin to the common canaliculus or the lacrimal sac (Figure 1). These rare developmental abnormalities often lead to epiphora.
What is the treatment for a patent fistula?
May be patient (with tears or discharges pooling or draining on the surrounding skin) or blunt as a blind sac In a patent fistula, surgical treatment to obliterate the fistula is necessary to prevent secondary infection
Why do fistula tears flow down the nasolacrimal duct instead of outflow?
In addition, the increased facility to tear outflow after a DCR causes tears to flow preferentially down the nasolacrimal duct rather than being shunted out of the fistula tract.
