Page 101 - FINAL COMPENDIUM 2020-2021 27.2.2022

LINGUAL CYST OF FOREGUT ORIGIN : A CASE REPORT

Ong YY, Sukeri S, Sockalingam G

Introduction: Lingual cysts of foregut origin are classified as choristomas containing
heterotopic islands of gastrointestinal mucosa. They may localize anywhere along the
gastrointestinal tract from the oral cavity to the anus. Their presence in the oral cavity
often causes parents anxiety and may result in feeding or respiratory difficulties for
patient. Case report: A 3-year-old Somalian boy presented with a 4.5 x 5.5 cm cystic mass
in the anterior tongue. Magnetic resonance imaging (MRI) showed a well encapsulated
sublingual mass with benign cystic features. Under general anaesthesia, complete
excision of the cyst was made by a midline incision at the anterior one-third of the tongue.
Aspiration from the cyst revealed a thick brownish fluid. Post-operative course was
uneventful. The histopathological examination reported a diagnosis of lingual cyst of
foregut origin. A cystic mass presenting in the anterior third of the tongue can represent
dermoid cyst, epidermoid cyst, lymphangioma, arteriovenous malformation, mucocele or
neurofibroma. Discussion: Lingual cyst of foregut origin as reported above is a relatively
rare condition arising from endodermal cells that become trapped during fusion of the
lateral lingual swelling and the tuberculum impar in the 3- to 4- mm embryo. They are
usually seen in the neonatal period, interfering with feeding but rarely interfering with
breathing. Conclusion: Surgery should be considered, even in the absence of symptoms,
as malignant changes in adult has been reported in previously untreated cyst. There is
also possibility of continued growth leading to obstruction, perforation, or infection. Early
intervention will provide a better aesthetic and functional outcome.

th
Presented at the 28 Congress of International Association Paediatric Dentistry 2021 on 10 – 13 June 2021.
Dr Yan Yu Ong
Dr Suriani Sukeri
Dr Ganasalingam A/L Sockalingam
Department of Paediatric Dentistry
Hospital Tunku Azizah
Kuala Lumpur

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