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International journal of odontostomatology

On-line version ISSN 0718-381X

Abstract

RIQUELME-M, Edgard  and  BADILLA-M, Rodrigo. Necroting Sialometaplasia: Review of the Literature on a Case. Int. J. Odontostomat. [online]. 2018, vol.12, n.2, pp.142-146. ISSN 0718-381X.  http://dx.doi.org/10.4067/S0718-381X2018000200142.

The Necrotizing Sialometaplazia (NS) it’s a rare self-limiting, inflammatory, benign disease, that most frequently affects the minor salivary glands and it is commonly associated to the glands located at the most posterior portion of the hard palate. Its etiology is not clear. Most authors suggest that a chemical, physical or biological lesion of the blood vessels would produce ischemic changes, which lead to infarction of muscle tissue with necrosis, inflammation and attempts to repair. Clinically it can present as a slightly elevated ulcer with irregular edges and necrotic bed, while histopathologically it is characterized for present squamous metaplasia of ducts and acini and pseudoepitheliomatous hyperplasia of mucosal epithelium. The similarity of its clinical and histopathological characteristics with some malignant glandular lesions of the oral cavity, can result in unnecessary treatments, considering that NS is a self-sustaining pathology, it is therefore essential to perform a correct clinical and histopathological diagnosis to avoid mutilating or unnecessary surgical treatments. In the present work we present the case of a young woman, with diagnosis of NS, with its clinical and histopathological characteristics and the evolution of the lesion.

Keywords : necrotizing sialometaplasia; salivary glands; oral ulcer.

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