Otosclerosis (OS) is a primary disease of the otic capsule bone that leads to progressive hearing loss, which can progress to mixed or sensorineural hearing loss (SNHL). Diagnosis relies on clinical evaluation and audiometric tests, with computed tomography (CT), cone beam computed tomography (CBCT), and magnetic resonance imaging (MRI) being crucial for assessing disease progression. Various grading systems, such as the Symons and Fanning classification and the Veillon system, aid in staging OS and guiding treatment decisions. Accurate imaging and diagnosis are important for optimizing patient outcomes and avoiding surgical complications. This chapter examines the CT and MRI appearances of otosclerosis, highlighting the key imaging features for preoperative assessment.
Otosclerosis / G. Del Vecchio, L.C. - In: Atlas of Normal and Pathological Findings in Otoneuroradiology / [a cura di] G. Conte, F. Triulzi, E. Scola. - [s.l] : Springer Nature, 2025. - ISBN 9783032082312. - pp. 121-135 [10.1007/978-3-032-08232-9_8]
Otosclerosis
L. CascheraSecondo
;G. Schiraldi;R. Cintioli;G. Conte;F. Triulzi;D. Zanetti;L.M. GainiPenultimo
;
2025
Abstract
Otosclerosis (OS) is a primary disease of the otic capsule bone that leads to progressive hearing loss, which can progress to mixed or sensorineural hearing loss (SNHL). Diagnosis relies on clinical evaluation and audiometric tests, with computed tomography (CT), cone beam computed tomography (CBCT), and magnetic resonance imaging (MRI) being crucial for assessing disease progression. Various grading systems, such as the Symons and Fanning classification and the Veillon system, aid in staging OS and guiding treatment decisions. Accurate imaging and diagnosis are important for optimizing patient outcomes and avoiding surgical complications. This chapter examines the CT and MRI appearances of otosclerosis, highlighting the key imaging features for preoperative assessment.
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