A Case of Ear Canal Cancer with a High Venous Arch That Benefited from an Intraoperative Navigation System

Introduction: Cancers of the external auditory canal are rare. Surgery may be the treatment of choice for localized cases. Lateral temporal bone resection is one surgical treatment option. It is rarely performed by skilled surgeons and requires caudal and anterior cutting of the tym...

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Main Authors: Ryota Tomioka, Yusuke Aihara, Kiyoaki Tsukahara
Format: Article
Language:English
Published: Karger Publishers 2025-01-01
Series:Case Reports in Oncology
Online Access:https://karger.com/article/doi/10.1159/000542927
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author Ryota Tomioka
Yusuke Aihara
Kiyoaki Tsukahara
author_facet Ryota Tomioka
Yusuke Aihara
Kiyoaki Tsukahara
author_sort Ryota Tomioka
collection DOAJ
description Introduction: Cancers of the external auditory canal are rare. Surgery may be the treatment of choice for localized cases. Lateral temporal bone resection is one surgical treatment option. It is rarely performed by skilled surgeons and requires caudal and anterior cutting of the tympanic chamber bone, which is not usually performed in ear surgery. It is imperative to ensure that the internal jugular vein and important nerves are present. Case Presentation: In this report, we describe a case of adenoid cystic carcinoma of the external auditory canal in which lateral temporal bone resection was safely performed using intraoperative navigation. A 33-year-old woman was diagnosed with an adenoid cystic carcinoma of the right external auditory canal by another physician and presented to our department. After close examination, she was diagnosed with T3N0M0 cancer of the external auditory canal and was referred to our department for lateral temporal bone resection. Although the patient had a high venous arch, intraoperative navigation enabled unblocked resection without exposing the tumor or damaging the vital tissues. Conclusion: Intraoperative navigation is considered a safer lateral temporal bone resection approach.
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spelling doaj-art-5e593a1d9666451a91bf730da41976942025-08-20T03:49:42ZengKarger PublishersCase Reports in Oncology1662-65752025-01-01181687510.1159/000542927A Case of Ear Canal Cancer with a High Venous Arch That Benefited from an Intraoperative Navigation SystemRyota TomiokaYusuke AiharaKiyoaki Tsukahara Introduction: Cancers of the external auditory canal are rare. Surgery may be the treatment of choice for localized cases. Lateral temporal bone resection is one surgical treatment option. It is rarely performed by skilled surgeons and requires caudal and anterior cutting of the tympanic chamber bone, which is not usually performed in ear surgery. It is imperative to ensure that the internal jugular vein and important nerves are present. Case Presentation: In this report, we describe a case of adenoid cystic carcinoma of the external auditory canal in which lateral temporal bone resection was safely performed using intraoperative navigation. A 33-year-old woman was diagnosed with an adenoid cystic carcinoma of the right external auditory canal by another physician and presented to our department. After close examination, she was diagnosed with T3N0M0 cancer of the external auditory canal and was referred to our department for lateral temporal bone resection. Although the patient had a high venous arch, intraoperative navigation enabled unblocked resection without exposing the tumor or damaging the vital tissues. Conclusion: Intraoperative navigation is considered a safer lateral temporal bone resection approach. https://karger.com/article/doi/10.1159/000542927
spellingShingle Ryota Tomioka
Yusuke Aihara
Kiyoaki Tsukahara
A Case of Ear Canal Cancer with a High Venous Arch That Benefited from an Intraoperative Navigation System
Case Reports in Oncology
title A Case of Ear Canal Cancer with a High Venous Arch That Benefited from an Intraoperative Navigation System
title_full A Case of Ear Canal Cancer with a High Venous Arch That Benefited from an Intraoperative Navigation System
title_fullStr A Case of Ear Canal Cancer with a High Venous Arch That Benefited from an Intraoperative Navigation System
title_full_unstemmed A Case of Ear Canal Cancer with a High Venous Arch That Benefited from an Intraoperative Navigation System
title_short A Case of Ear Canal Cancer with a High Venous Arch That Benefited from an Intraoperative Navigation System
title_sort case of ear canal cancer with a high venous arch that benefited from an intraoperative navigation system
url https://karger.com/article/doi/10.1159/000542927
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