Abstract
Ectopic sebaceous glands are quite common in the oral cavity, mainly presenting as yellowish papules in the buccal mucosa and lips. Oral sebaceous choristoma is rare and usually affect the posterior midline region of the tongue in adult patients. Woman, 35, had a bluish dome-shaped nodule in the posterior upper gingiva that showed superficial bone resorption. Microscopic evaluation of the gingival connective tissue revealed proliferation of the sebaceous glands with a central cystic formation lined by keratinized stratified epithelium located adjacent to a minor duct−like structure recovered by cuboidal cells.
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