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Case Reports in Dentistry
Volume 2016 (2016), Article ID 7462690, 4 pages
Case Report

A Rare Primary Neuroendocrine Tumor (Typical Carcinoid) of the Sublingual Gland

1Department of Oral and Maxillofacial Surgery, Institute of Clinical Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
2Department of Oral and Maxillofacial Surgery, Ishioka Daiichi Hospital, Ishioka, Japan

Received 15 June 2016; Accepted 3 October 2016

Academic Editor: Luis M. J. Gutierrez

Copyright © 2016 Kenji Yamagata et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A typical carcinoid is extremely rare in the oral cavity. We here present a case of a typical carcinoid arising in the sublingual gland of a 62-year-old woman. The tumor was removed by primary excision with 10 mm surgical margins and submandibular dissection. Examination of the tumor showed medium-sized tumor cells that were positive for CD56 and chromogranin A, with no necrosis, and with a mitotic count less than 1/10 HPF. A pathological diagnosis of typical carcinoid was made from both morphological and immunological examinations. One year after excision surgery, there was no tumor recurrence or neck metastasis.