Abstract
A 78-year-old black female patient attended the oral medicine clinic complaining of a 2-month gum lesion that was painful during tooth brushing. Intraoral examination demonstrated a firm rounded nodule in the attached gingiva of the right inferior lateral incisor and canine. Periapical radiograph was noncontributory, and the patient was submitted to excisional biopsy. The histopathologic aspect showed a mucosal fragment covered by a parakeratinized stratified squamous epithelium exhibiting mild spongiosis and exocytosis with a cystic lesion at the subjacent connective tissue with a thin capsule of flat epithelial lining forming plaque-like structures. Thus, the final diagnosis was gingival cyst of the adult (GVA). GVA is a rare odontogenic cyst from the rests of dental lamina, frequently observed in the soft tissues of mandibular canine and premolar regions. Treatment of gingival cysts of the adult is definitive and have shown good prognosis after surgical excision.
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