Cisto dermóide em assoalho de boca: relato de caso

Abstract

Dermoid cysts are considered a cystic malformation that show benign and rare in the head and neck region. They are described as a developmental cyst that contains appendages of the dermis such as sweat glands, sebaceous glands and hair follicles covered by stratified squamous epithelium. They occur more frequently in the midline of the floor of the mouth. The aim of the study is to describe a clinical case of a female patient with a dermoid cyst in oral cavity, describe the clinical, imaging, anatomopathological findings, as well as the surgical times of the approach and present the postoperative evolution of the case. The patient reported an increase in volume on the floor of the mouth, with progressive worsening. She reported dysphagia, dyslalia, odynophagia and dyspnea with progression to respiratory distress and snoring. The treatment was performed in a surgical procedure with intraoral approach followed by complete excision of the lesion. The histopathological examination revealed a cystic cavity covered by a stratified hyperortoceratinized stratified epithelium. Capsule consisted of fibrous, vascularized connective tissue, with collections of mononuclear inflammatory cells and the presence of sebaceous glands and skeletal muscle fibers. Large amount of keratin in the form of filaments, also observed in the lumen of the lesion. The histopathology diagnosis was dermoid cyst.