The Appendageal Wainscot- Dermoid Cyst

Abstract

Epidermoid and dermoid cystsare developmental cysts which ensue from displacement ofembryologic tissue or sites of fusion of embryonic elementsand weredescribed by Roser in 1859.Congenital dermoid cysts are described as a dys-embryogeniclesions arising from entrapped ectodermal tissueduringgestational midlinefusionoffirst or secondbranchial arch. Acquireddermoid cysts were designated as “Implantation cysts” in 1895by Sutton and can be engendered bysurgical procedures, as a variant of thyroglossal duct cyst oras traumatic manifestationdisplaying entrapped surface epithelium and implanted epithelial cells of deep connective tissue with subsequent differentiation and configuration of a cyst. Dermoid cysts are commonly asymptomatic and secondary infection ensures the emergence of clinical symptoms. Dermoid cysts are soft, nodular, sessile lesions with an absent pedicle and are discerned on commonly enunciated onfacial regions such as the upper lip, gingiva, palate, uvula or as intra-oral lesions, although no site is exempt.