caa a22 4500 606183981 CHVBK 20210128100824.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s00405-014-2951-4 doi (NATIONALLICENCE)springer-10.1007/s00405-014-2951-4 Restudy of malformations of the internal auditory meatus, cochlear nerve canal and cochlear nerve [Elektronische Daten] [Youjin Li, Jun Yang, Jinfen Liu, Hao Wu] The present study aims to restudy the correlation between the internal auditory meatus (IAM), the cochlear nerve canal (CNC), the cochlear nerve (CN) and inner ear malformations. In this retrospective study design, the abnormal diameter of the IAM, CNC and CN in patients with any kind of inner ear malformations was evaluated using multi-slice spiral computed tomography (MSCT) (37 patients) and magnetic resonance imaging (MRI) (18 patients). Of 37 MSCT-diagnosed patients, 2 had IAM atresia, 11 IAM stenosis, 22 enlarged IAM, and 2 normal IAM with an abnormal CN. MRI diagnoses of 18 patients revealed 8 cases of aplastic CN, 6 hypoplastic CN, and 4 normal CN. CNC stenosis was associated with CN hypoplasia (P<0.001). Patients with absent or stenotic IAM had less CN development than those with normal or enlarged IAM (P=0.001). We propose a modification of the existing classification systems with a view to distinguishing malformations of the IAM, CNC and CN. The Author(s), 2014 Internal auditory meatus nationallicence Cochlear nerve canal nationallicence Cochlear nerve nationallicence Classification nationallicence Li Youjin Department of Otorhinolaryngology, Children Medical Center, Shanghai Jiaotong University School of Medicine, 200127, Shanghai, China aut Yang Jun Department of Otorhinolaryngology-Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai Jiaotong University School of Medicine Ear Institute, Kong Jiang Rd 1665, 200092, Shanghai, China aut Liu Jinfen Department of Pediatric Institute, Children Medical Center, Shanghai Jiaotong University, 200127, Shanghai, China aut Wu Hao Department of Otorhinolaryngology-Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai Jiaotong University School of Medicine Ear Institute, Kong Jiang Rd 1665, 200092, Shanghai, China aut European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/7(2015-07-01), 1587-1596 0937-4477 272:7<1587 2015 272 405 https://doi.org/10.1007/s00405-014-2951-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00405-014-2951-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Youjin Department of Otorhinolaryngology, Children Medical Center, Shanghai Jiaotong University School of Medicine, 200127, Shanghai, China aut NATIONALLICENCE 700 1- Yang Jun Department of Otorhinolaryngology-Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai Jiaotong University School of Medicine Ear Institute, Kong Jiang Rd 1665, 200092, Shanghai, China aut NATIONALLICENCE 700 1- Liu Jinfen Department of Pediatric Institute, Children Medical Center, Shanghai Jiaotong University, 200127, Shanghai, China aut NATIONALLICENCE 700 1- Wu Hao Department of Otorhinolaryngology-Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai Jiaotong University School of Medicine Ear Institute, Kong Jiang Rd 1665, 200092, Shanghai, China aut NATIONALLICENCE 773 0- European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/7(2015-07-01), 1587-1596 0937-4477 272:7<1587 2015 272 405