Alper Yenigun , Yagmur Basak Polat , Emre Polat , Serdar Balsak , Meliha Basoz , Sabri Baki Eren , Orhan Ozturan
{"title":"耳膜破裂的影像学表现及半规管破裂Yenigun分型的发展","authors":"Alper Yenigun , Yagmur Basak Polat , Emre Polat , Serdar Balsak , Meliha Basoz , Sabri Baki Eren , Orhan Ozturan","doi":"10.1016/j.anl.2025.07.009","DOIUrl":null,"url":null,"abstract":"<div><h3>Objective</h3><div>The superior semicircular canal dehiscence is the most well-known otic capsule dehiscence. However, several other dehiscences affect the semicircular canals, cochlea, and vestibule. Our research aimed to examine the frequency, distribution, and correlation between radiologic otic capsule dehiscence in patients exhibiting symptoms of third window syndrome. Additionally, we proposed a new classification system for semicircular canal dehiscence.</div></div><div><h3>Methods</h3><div>In this retrospective study, we included cases who applied to the Otolaryngology Department of our university hospital between January 2015 and September 2023 and underwent standard reformations and Poschl plane CT scans due to symptoms suggestive of third window syndrome. A head and neck radiologist and a general radiologist jointly assessed each CT and decided on measurements.</div></div><div><h3>Results</h3><div>The study examined 219 patients (438 temporal bones) with suggestive symptoms of third window syndrome. Semicircular Canal Dehiscences were categorized into five types: Type 0 (No dehiscence), Type 1 (Unilateral single canal dehiscence), Type 2 (Bilateral single canal dehiscence), and Type 3 (Unilateral multiple localization dehiscence), and Type 4 (Bilateral multiple localization dehiscence). Semicircular Canal Dehiscence was observed in 71/219 (32,4 %) patients. Type 0:148 (67,6 %), Type1:31(14,2 %), Type2:21(9.6 %), Type 3:15(6.8 %) and Type 4: 4(1.8 %) patients were detected. Cochlear-Facial Dehiscence and Vestibular Aqueduct-Jugular Bulb Dehiscence were seen in 63/219(28,8 %) and 21/219(9,6 %) patients. When cases with Semicircular Canal Dehiscences were examined, Type 2 and Type 4 were seen significantly more frequently than other types in cases with Cochlear-Facial Dehiscence.</div></div><div><h3>Conclusion</h3><div>When we examine the otic capsule, we see that the possibility of Cochlear-Facial Dehiscence increases in bilateral Semicircular Canal Dehiscence cases. The radiologist should evaluate the otic capsule as a whole. Particular attention should be paid to multiple channels, bilateral localization, cochlear and vestibular dehiscences.</div></div>","PeriodicalId":55627,"journal":{"name":"Auris Nasus Larynx","volume":"52 5","pages":"Pages 550-556"},"PeriodicalIF":1.5000,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Radiologic prevalence of otic capsule dehiscence and development of the Yenigun classification for semicircular canal dehiscence\",\"authors\":\"Alper Yenigun , Yagmur Basak Polat , Emre Polat , Serdar Balsak , Meliha Basoz , Sabri Baki Eren , Orhan Ozturan\",\"doi\":\"10.1016/j.anl.2025.07.009\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Objective</h3><div>The superior semicircular canal dehiscence is the most well-known otic capsule dehiscence. However, several other dehiscences affect the semicircular canals, cochlea, and vestibule. Our research aimed to examine the frequency, distribution, and correlation between radiologic otic capsule dehiscence in patients exhibiting symptoms of third window syndrome. Additionally, we proposed a new classification system for semicircular canal dehiscence.</div></div><div><h3>Methods</h3><div>In this retrospective study, we included cases who applied to the Otolaryngology Department of our university hospital between January 2015 and September 2023 and underwent standard reformations and Poschl plane CT scans due to symptoms suggestive of third window syndrome. A head and neck radiologist and a general radiologist jointly assessed each CT and decided on measurements.</div></div><div><h3>Results</h3><div>The study examined 219 patients (438 temporal bones) with suggestive symptoms of third window syndrome. Semicircular Canal Dehiscences were categorized into five types: Type 0 (No dehiscence), Type 1 (Unilateral single canal dehiscence), Type 2 (Bilateral single canal dehiscence), and Type 3 (Unilateral multiple localization dehiscence), and Type 4 (Bilateral multiple localization dehiscence). Semicircular Canal Dehiscence was observed in 71/219 (32,4 %) patients. Type 0:148 (67,6 %), Type1:31(14,2 %), Type2:21(9.6 %), Type 3:15(6.8 %) and Type 4: 4(1.8 %) patients were detected. Cochlear-Facial Dehiscence and Vestibular Aqueduct-Jugular Bulb Dehiscence were seen in 63/219(28,8 %) and 21/219(9,6 %) patients. When cases with Semicircular Canal Dehiscences were examined, Type 2 and Type 4 were seen significantly more frequently than other types in cases with Cochlear-Facial Dehiscence.</div></div><div><h3>Conclusion</h3><div>When we examine the otic capsule, we see that the possibility of Cochlear-Facial Dehiscence increases in bilateral Semicircular Canal Dehiscence cases. The radiologist should evaluate the otic capsule as a whole. Particular attention should be paid to multiple channels, bilateral localization, cochlear and vestibular dehiscences.</div></div>\",\"PeriodicalId\":55627,\"journal\":{\"name\":\"Auris Nasus Larynx\",\"volume\":\"52 5\",\"pages\":\"Pages 550-556\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2025-08-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Auris Nasus Larynx\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0385814625001105\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"OTORHINOLARYNGOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Auris Nasus Larynx","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0385814625001105","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OTORHINOLARYNGOLOGY","Score":null,"Total":0}
Radiologic prevalence of otic capsule dehiscence and development of the Yenigun classification for semicircular canal dehiscence
Objective
The superior semicircular canal dehiscence is the most well-known otic capsule dehiscence. However, several other dehiscences affect the semicircular canals, cochlea, and vestibule. Our research aimed to examine the frequency, distribution, and correlation between radiologic otic capsule dehiscence in patients exhibiting symptoms of third window syndrome. Additionally, we proposed a new classification system for semicircular canal dehiscence.
Methods
In this retrospective study, we included cases who applied to the Otolaryngology Department of our university hospital between January 2015 and September 2023 and underwent standard reformations and Poschl plane CT scans due to symptoms suggestive of third window syndrome. A head and neck radiologist and a general radiologist jointly assessed each CT and decided on measurements.
Results
The study examined 219 patients (438 temporal bones) with suggestive symptoms of third window syndrome. Semicircular Canal Dehiscences were categorized into five types: Type 0 (No dehiscence), Type 1 (Unilateral single canal dehiscence), Type 2 (Bilateral single canal dehiscence), and Type 3 (Unilateral multiple localization dehiscence), and Type 4 (Bilateral multiple localization dehiscence). Semicircular Canal Dehiscence was observed in 71/219 (32,4 %) patients. Type 0:148 (67,6 %), Type1:31(14,2 %), Type2:21(9.6 %), Type 3:15(6.8 %) and Type 4: 4(1.8 %) patients were detected. Cochlear-Facial Dehiscence and Vestibular Aqueduct-Jugular Bulb Dehiscence were seen in 63/219(28,8 %) and 21/219(9,6 %) patients. When cases with Semicircular Canal Dehiscences were examined, Type 2 and Type 4 were seen significantly more frequently than other types in cases with Cochlear-Facial Dehiscence.
Conclusion
When we examine the otic capsule, we see that the possibility of Cochlear-Facial Dehiscence increases in bilateral Semicircular Canal Dehiscence cases. The radiologist should evaluate the otic capsule as a whole. Particular attention should be paid to multiple channels, bilateral localization, cochlear and vestibular dehiscences.
期刊介绍:
The international journal Auris Nasus Larynx provides the opportunity for rapid, carefully reviewed publications concerning the fundamental and clinical aspects of otorhinolaryngology and related fields. This includes otology, neurotology, bronchoesophagology, laryngology, rhinology, allergology, head and neck medicine and oncologic surgery, maxillofacial and plastic surgery, audiology, speech science.
Original papers, short communications and original case reports can be submitted. Reviews on recent developments are invited regularly and Letters to the Editor commenting on papers or any aspect of Auris Nasus Larynx are welcomed.
Founded in 1973 and previously published by the Society for Promotion of International Otorhinolaryngology, the journal is now the official English-language journal of the Oto-Rhino-Laryngological Society of Japan, Inc. The aim of its new international Editorial Board is to make Auris Nasus Larynx an international forum for high quality research and clinical sciences.