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Large Sublingual Dermoid Cyst in the Floor of Mouth and Submental Space

Mohamed Saleh Elarbi*,Hamza Alshawish,Osama Khalifa

A dermoid cysts are benign congenital lesions of ectodermal origin not commonly seen in the mouth, however when presents as a swelling in the middle of the mouth floor and its developmental lesion usually due to retention of germinal epithelium during growth of branchial arches and Lower jaw. Usually diagnosed during the 2nd and 3rd decade of life and rarely seen in children. This is a case of 13 years old boy was presented with firm painless swelling in the floor of mouth extending into the submental space, dermoid cyst should be considered in the differential diagnosis as one of the lesions presented in any midline swelling. The main treatment is surgical excision using an intraoral approach to avoid scar extra-orally.