Multifocal Necrotizing Sialometaplasia in the Tongue Surgical Specimen: An Immunohistochemical Study.

IF 3.2 Q2 PATHOLOGY Head & Neck Pathology Pub Date : 2025-02-05 DOI:10.1007/s12105-025-01756-4

Marcelo Borges Marques, Gabriela Esperanza Maradiaga Posantes, Luana Stefanie Silvino Gonçalves, Anderson Tangerino Ferreira da Silva, Heitor Albergoni Silveira, Fernando Chahud, Jorge Esquiche León

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Abstract

Background: Necrotizing sialometaplasia (NSM) is a rare self-limiting inflammatory lesion, with most cases affecting the minor salivary glands, especially those located in the palate (70%). To date, about 261 cases of NSM have been reported. Of them, 7 cases affected the tongue; 37 cases occurred after surgery; and 17 cases showed association with neoplasms.

Methods: A 50-year-old male patient was diagnosed with squamous cell carcinoma (SCC) of the tongue. After surgical excision, the tumor diagnosis was well-differentiated SCC with a close surgical margin. Re-excision of the margin was indicated.

Results: Microscopically, the surgical margin showed neither residual SCC nor epithelial dysplasia. However, it was possible to observe 7 foci containing typical areas of NSM distributed throughout the surgical specimen, which, by immunohistochemistry, revealed a glandular nature with presence of myoepithelial cells.

Conclusion: We present here an unusual multifocal NSM affecting the tongue at the site of a prior resection for SCC with close margins, which, to the best of our knowledge, has not been reported to date.

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来源期刊

Head & Neck Pathology PATHOLOGY-

CiteScore

5.70

自引率

9.50%

发文量

期刊介绍： Head & Neck Pathology presents scholarly papers, reviews and symposia that cover the spectrum of human surgical pathology within the anatomic zones of the oral cavity, sinonasal tract, larynx, hypopharynx, salivary gland, ear and temporal bone, and neck. The journal publishes rapid developments in new diagnostic criteria, intraoperative consultation, immunohistochemical studies, molecular techniques, genetic analyses, diagnostic aids, experimental pathology, cytology, radiographic imaging, and application of uniform terminology to allow practitioners to continue to maintain and expand their knowledge in the subspecialty of head and neck pathology. Coverage of practical application to daily clinical practice is supported with proceedings and symposia from international societies and academies devoted to this field. Single-blind peer review The journal follows a single-blind review procedure, where the reviewers are aware of the names and affiliations of the authors, but the reviewer reports provided to authors are anonymous. Single-blind peer review is the traditional model of peer review that many reviewers are comfortable with, and it facilitates a dispassionate critique of a manuscript.