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Various types of vestibular aqueduct

(a) Funnel type. (b) Tubular type. (c) Filiform type. (d) Hollow type. (e) Obliterated type. (Source: Xia K, Lei P, Liu Y, et al. Comparison of vestibular aqueduct visualization on computed tomography and magnetic resonance imaging in patients with Ménière's disease. BMC Med Imaging 2024;24[1]:93. Creative Commons Attribution 4.0 International [CC BY 4.0] license, creativecommons.org/licenses/by/4.0.)