Necrotizing sialometaplasia is a rare benign lesion that is characterized by squamous metaplasia, necrosis, and inflammation of the salivary glands. Clinically and histopathologically, differential diagnosis is necessary because it is similar to squamous cell carcinoma or mucoepidermoid carcinoma. In this report, the clinical course of a necrotizing sialometaplasia in the hard palate is described. A 22-year-old woman was referred to our department with complaints of swelling and pain of the left palate. A swollen lesion, 30×20mm in diameter, with a crater-like ulceration was observed in the posterior part of the left hard palate. A biopsy was performed and the histopathological diagnosis was necrotizing sialometaplasia. After 2 months, the lesion spontaneously healed without any medical treatment.
