Necrotizing Sialometaplasia

Necrotizing sialometaplasia (NS) is a nonneoplastic inflammatory condition of the salivary glands. In 1973, Abrams et al first reported this condition.1 The clinical and histopathologic features of necrotizing sialometaplasia often simulate those of malignancies such as squamous cell carcinoma or salivary gland malignancy.2 All subsequent reports of necrotizing sialometaplasia stress the importance of correct diagnosis. Familiarity with necrotizing sialometaplasia and correct diagnosis are paramount in avoiding misdiagnosis and inappropriate treatment. Ischemia of salivary gland tissue leading to infarction (trauma) is the most likely cause.

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