Isolated Bilateral Congenital Lower Lip Sinuses in a Child: A Rare Non-syndromic Presentation

Congenital lower lip sinuses are rare developmental anomalies, most commonly associated with Van der Woude syndrome. Isolated bilateral nonsyndromic presentations are extremely uncommon.[1,2] A 13-year-old boy presented with bilateral lower lip pits since birth, associated with intermittent mucous discharge. Clinical examination showed two symmetric pits near the midline at the vermilion border, without cleft lip, cleft palate, dental anomalies, limb defects, or family history [Figure 1a]. Magnetic resonance imaging of the face showed no deep extension or associated craniofacial abnormalities. Bilateral excision was performed using rhomboid incisions [Figure 1b]. Each sinus tract was superficial, blind-ending, and non-communicating [Figure 1c]. Histopathology confirmed that the sinus tracts were lined by stratified squamous epithelium with minor salivary glands. The postoperative course was uneventful, with excellent cosmetic outcome and no recurrence at 6 months [Figure 1d].Figure 1: (a) Preoperative photograph showing bilateral congenital lower lip sinuses with mucous discharge. (b) Intraoperative marking with rhomboid incisions surrounding the pits. (c) Complete excision of the sinus tracts along with the surrounding abnormal tissue. (d) Postoperative photograph at 6-month follow-up demonstrating excellent cosmetic healing without recurrenceDeclaration of patient consent The authors certify that they have obtained all appropriate patient consent forms. In the form, the patient(s) has/have given his/her/their consent for his/her/their images and other clinical information to be reported in the journal. The patients understand that their names and initials will not be published and due efforts will be made to conceal their identity, but anonymity cannot be guaranteed. Financial support and sponsorship Nil. Conflicts of interest There are no conflicts of interest.