J Korean Assoc Oral Maxillofac Surg 2017; 43(3): 191~196
Squamous cell carcinoma of the buccal mucosa involving the masticator space: a case report
Il-hyung Kim1, Hoon Myoung1,2
1Department of Oral and Maxillofacial Surgery, School of Dentistry, Seoul National University,
2Dental Research Institute, Seoul National University, Seoul, Korea
Hoon Myoung
Department of Oral and Maxillofacial Surgery, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea
TEL: +82-2-2072-3059 FAX: +82-2-766-4948 E-mail: myoungh@snu.ac.kr ORCID: http://orcid.org/0000-0002-9984-8479
Received February 19, 2017; Accepted April 4, 2017.; Published online June 30, 2017.
© Korean Association of Oral and Maxillofacial Surgeons. All rights reserved.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Squamous cell carcinoma of the buccal mucosa has an aggressive nature, as it grows rapidly and penetrates well with a high recurrence rate. If cancers originating from the buccal mucosa invade adjacent anatomical structures, surgical tumor resection becomes more challenging, thus raising specific considerations for reconstruction relative to the extent of resection. The present case describes the surgical management of a 58-year-old man who presented with persistent ulceration of the mucosal membrane and a mouth-opening limitation of 11 mm. Diagnostic imaging revealed a buccal mucosa tumor that had invaded the retroantral space upward with involvement of the anterior border of the masseter muscle by the lateral part of the tumor. In this report, we present the surgical approach we used to access the masticator space behind the maxillary sinus and discuss how to manage possible damage to Stensen’s duct during resection of buccal mucosa tumors.
Keywords: Squamous cell carcinoma, Oral cavity cancer, Buccal mucosa, Stensen’s duct

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