58 year-old man referred for SNHL and vertigo 2 days after stapedectomy with a reparative intravestibular granuloma, confirmed by surgery. 58 year-old.

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Presentation transcript:

58 year-old man referred for SNHL and vertigo 2 days after stapedectomy with a reparative intravestibular granuloma, confirmed by surgery. 58 year-old man referred for SNHL and vertigo 2 days after stapedectomy with a reparative intravestibular granuloma, confirmed by surgery. A, Coronal CT scan of the left temporal bone shows a soft tissue mass filling the oval window niche (arrow) and surrounding the tympanic portion of the facial nerve and the prosthesis.B, Noncontrast T1-weighted MR image (500/15) reveals slight high signal intensity of the vestibule (arrow).C, Axial contrast-enhanced T1-weighted MR image shows an enhancing mass of the oval window niche (arrowhead) spreading within the vestibule (single arrow) and the posterior (double arrows) and lateral (triple arrows) semicircular canals. Anne-Sophie Rangheard et al. AJNR Am J Neuroradiol 2001;22:1171-1178 ©2001 by American Society of Neuroradiology