Abstract
Congenital midline upper lip sinuses or fistulas are exceptionally uncommon condition following abnormal fusion of embryologic structures. Here, we report a case of congenital upper lip sinus type I presented as upper vestibular fold abscess in a seven year old boy.
Highlights
Congenital midline lip fistulas or sinuses are infrequent malformations
We report a case of congenital upper lip sinus type I presented as upper vestibular fold abscess in a seven year old boy
The incidence of the congenital lower lip fistula is considered to be 0.001% whereas upper lip sinuses are even more unusual, and they usually present as a dimpling into a blind sinus, that breaches the orbicularis oris muscle ending under neath the mucosal surface of the lip, without communication with the oral cavity [1, 2]
Summary
Congenital midline lip fistulas or sinuses are infrequent malformations. The anomalies are typically found in Van der Woude syndrome, characterized by a pair of lower-lip dimples in relation with cleft palate. There were no other related congenital anomalies and none of his family members had similar symptoms, lip pits, cleft lips or cleft palates He was treated by paediatric surgical team with a course of antibiotics but to no avail when the swelling recurred multiple times. He was referred to our department with features of an abscess and pus discharge coming out from the sinus. A7-year-old boy presented to have a midline pit in the upper-lip philtrum since birth. He had recurrent bulge around the frenulum of the upper lip with clear fluid discharge through external orifice of upper lip.
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