Elongated styloid process syndrome with prolongation of the superior cornu of the thyroid cartilage: A case report

Katsuhisa Sekido; Yasushi Hariya; Kie Yamashiro; Michiko Okita; Masashi Harada; Eiji Nakayama

doi:10.1016/j.ijscr.2021.106283

Elongated styloid process syndrome with prolongation of the superior cornu of the thyroid cartilage: A case report

Int J Surg Case Rep. 2021 Sep:86:106283. doi: 10.1016/j.ijscr.2021.106283. Epub 2021 Aug 5.

Authors

Katsuhisa Sekido¹, Yasushi Hariya², Kie Yamashiro³, Michiko Okita³, Masashi Harada³, Eiji Nakayama⁴

Affiliations

¹ Department of Dentistry and Oral Surgery, Toyama Red Cross Hospital, 2-1-58, Ushijimahonnmachi, 930-0859 Toyama, Japan; Department of Oral and Maxillofacial Surgery, and Comprehensive Oral Science, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama city, Toyama 930-0194, Japan.
² Department of Oral and Maxillofacial Surgery, Teine Keijinkai Hospital, 1-12-1-40, Maeda, Teineku, Sapporo city, Hokkaido 006-8555, Japan. Electronic address: hariya-tdr@keijinkai.or.jp.
³ Department of Oral and Maxillofacial Surgery, Teine Keijinkai Hospital, 1-12-1-40, Maeda, Teineku, Sapporo city, Hokkaido 006-8555, Japan.
⁴ Division of Oral and Maxillofacial Radiology, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, 1757, Kanazawa, Toubetsu, Ishikari, Hokkaido 061-0293, Japan.

Abstract

Introduction: Elongated styloid process syndrome represents a group of symptoms, such as recurrent throat pain and neck pain, caused by elongation of the styloid process. We report a case of elongated styloid process syndrome with prolongation of the superior cornu of the thyroid cartilage.

Case presentation: A 50-year-old man was referred to our clinic with the chief complaint of discomfort on the right side of his neck. He had no history of any disease. Extraoral findings indicated pain during neck rotation. Computed tomography showed prolongation of the styloid process beyond the mandibular plane and close to the hyoid. Moreover, prolongation of the superior cornu of the thyroid cartilage was detected. The discomfort during rotation of the neck was due to the stimulation by the styloid process. Styloid resection was performed using the extraoral approach under general anesthesia.

Conclusion: Discomfort in the neck was resolved after operation.

Keywords: Elongated styloid process syndrome; Prolongation of the superior cornu of the thyroid cartilage, styloid process; Styloid resection.