SURGICAL TREATMENT OF EXTENSIVE INTRAORAL DERMOID CYST: CASE REPORT

The aim of the present work is to report a rare case of extensive intraoral dermoid cyst in a female patient, 54 years old, who complained of volume increase at the floor of the mouth. The extraoral physical examination showed submental swelling. The intraoral examination revealed a tumor, presenting mobility and sessile base. An excisional biopsy was performed and the specimen was sent to anatomopathological analysis. Histologic sections revealed fragments of cystic capsules coated with orthokeratinized stratified squamous epithelium exhibiting hyperkeratosis, with intense accumulation of intraluminal keratin. Capsular connective tissue was dense and permeated by foci of intense mononuclear inflammatory infiltrate, and large numbers of multinucleated giant cells. Cutaneous attachments such as sebaceous glands are observed. The patient is in clinical follow-up and she has no complaints or signs of recurrence. Dermoid cysts are rare lesions in the oral cavity, but their presence may lead to dysphagia, dysphonia, and masticatory difficulties.