Necrotizing sialometaplasia(NS)is a rare,self-limiting disease affecting area containing salivary gland tissue.As necrotizing sialometaplasia may resembles other diseases such as malignant tumors in both clinicopatho-logical manifestations,learning the issue of NS is critical for appropriate diagnosis and treatment,avoiding unneces-sary radical surgery.Here we reported a case of necrotizing sialometaplasia presented as a massive ulcer on the pal-ate,aiming to provide reference for clinical management of the disease.
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