Cochlear IP-I: Absent internal structure of entire cochlea
Cochlear IP-I
Milder form of IP-I confined to cochlea
Cystic cochleovestibular malformation (CCVM)
Least differentiated manifestation of IP-I involving cochlea, vestibule, & semicircular canals (SCCs)
IMAGING
General Features
CT Findings
MR Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
CLINICAL ISSUES
Presentation
Natural History & Prognosis
Treatment
Selected References
O'Brien WT , Sr et al: Nonsyndromic congenital causes of sensorineural hearing loss in children: an illustrative review. AJR Am J Roentgenol. 1-8, 2021
D'Arco F et al: The link between inner ear malformations and the rest of the body: what we know so far about genetic, imaging and histology. Neuroradiology. 62(5):539-44, 2020
Sennaroğlu L et al: Classification and current management of inner ear malformations. Balkan Med J. 34(5):397-11, 2017
Suk Y et al: Surgical outcomes after cochlear implantation in children with incomplete partition type I: comparison with deaf children with a normal inner ear structure. Otol Neurotol. 36(1):e11-7, 2015
Kontorinis G et al: Radiological diagnosis of incomplete partition type I versus type II: significance for cochlear implantation. Eur Radiol. 22(3):525-32, 2012
Chadha NK et al: Bilateral cochlear implantation in children with anomalous cochleovestibular anatomy. Arch Otolaryngol Head Neck Surg. 135(9):903-9, 2009
Sennaroglu L et al: Surgical results of cochlear implantation in malformed cochlea. Otol Neurotol. 27(5):615-23, 2006
Sennaroglu L et al: Unpartitioned versus incompletely partitioned cochleae: radiologic differentiation. Otol Neurotol. 25(4):520-9; discussion 529, 2004
Sennaroglu L et al: A new classification for cochleovestibular malformations. Laryngoscope. 112(12):2230-41, 2002
Related Anatomy
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Related Differential Diagnoses
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Clinical Issues
TERMINOLOGY
Abbreviations
Cochlear incomplete partition type I (IP-I)
Definitions
Cochlear IP-I: Absent internal structure of entire cochlea
Cochlear IP-I
Milder form of IP-I confined to cochlea
Cystic cochleovestibular malformation (CCVM)
Least differentiated manifestation of IP-I involving cochlea, vestibule, & semicircular canals (SCCs)
IMAGING
General Features
CT Findings
MR Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
CLINICAL ISSUES
Presentation
Natural History & Prognosis
Treatment
Selected References
O'Brien WT , Sr et al: Nonsyndromic congenital causes of sensorineural hearing loss in children: an illustrative review. AJR Am J Roentgenol. 1-8, 2021
D'Arco F et al: The link between inner ear malformations and the rest of the body: what we know so far about genetic, imaging and histology. Neuroradiology. 62(5):539-44, 2020
Sennaroğlu L et al: Classification and current management of inner ear malformations. Balkan Med J. 34(5):397-11, 2017
Suk Y et al: Surgical outcomes after cochlear implantation in children with incomplete partition type I: comparison with deaf children with a normal inner ear structure. Otol Neurotol. 36(1):e11-7, 2015
Kontorinis G et al: Radiological diagnosis of incomplete partition type I versus type II: significance for cochlear implantation. Eur Radiol. 22(3):525-32, 2012
Chadha NK et al: Bilateral cochlear implantation in children with anomalous cochleovestibular anatomy. Arch Otolaryngol Head Neck Surg. 135(9):903-9, 2009
Sennaroglu L et al: Surgical results of cochlear implantation in malformed cochlea. Otol Neurotol. 27(5):615-23, 2006
Sennaroglu L et al: Unpartitioned versus incompletely partitioned cochleae: radiologic differentiation. Otol Neurotol. 25(4):520-9; discussion 529, 2004
Sennaroglu L et al: A new classification for cochleovestibular malformations. Laryngoscope. 112(12):2230-41, 2002
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