title: A Rare Primary Neuroendocrine Tumor (Typical Carcinoid) of the Sublingual Gland.
abstract: 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.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Institute of Clinical Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
authors.forename: Kenji
authors.identifier: 0000-0001-7231-7478
authors.initials: K
authors.lastname: Yamagata
authors.affiliation: Department of Oral and Maxillofacial Surgery, Ishioka Daiichi Hospital, Ishioka, Japan.
authors.forename: Kousuke
authors.initials: K
authors.lastname: Ohki
authors.affiliation: Department of Oral and Maxillofacial Surgery, Institute of Clinical Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
authors.forename: Fumihiko
authors.initials: F
authors.lastname: Uchida
authors.affiliation: Department of Oral and Maxillofacial Surgery, Institute of Clinical Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
authors.forename: Naomi
authors.initials: N
authors.lastname: Kanno
authors.affiliation: Department of Oral and Maxillofacial Surgery, Institute of Clinical Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
authors.forename: Shogo
authors.initials: S
authors.lastname: Hasegawa
authors.affiliation: Department of Oral and Maxillofacial Surgery, Institute of Clinical Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
authors.forename: Toru
authors.initials: T
authors.lastname: Yanagawa
authors.affiliation: Department of Oral and Maxillofacial Surgery, Institute of Clinical Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Bukawa