Necrotizing Sialometaplasia, also known as sialometaplasia, necrotizing, is related to mucoepidermoid carcinoma and adenosquamous carcinoma. An important gene associated with Necrotizing Sialometaplasia is KRT7 (Keratin 7), and among its related pathways/superpathways are Keratinization and AP-1 transcription factor network. Affiliated tissues include salivary gland and trachea.