TY - JOUR T1 - Osteoid Osteoma Invading the Posterior Labyrinth of the Petrous Bone JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 1764 LP - 1766 DO - 10.3174/ajnr.A1910 VL - 31 IS - 9 AU - E. Dugert AU - S. Lagleyre AU - A. Brouchet AU - O. Deguine AU - C. Cognard AU - F. Bonneville Y1 - 2010/10/01 UR - http://www.ajnr.org/content/31/9/1764.abstract N2 - SUMMARY: We report a painless osteoid osteoma of the inner ear in an elderly woman presenting with hearing loss, tinnitus, and vertigo. CT showed a heterogeneous mass containing calcifications involving the posterior labyrinth, which heterogeneously enhanced on postcontrast MR images. Osteoid osteoma should be included in the differential diagnosis of an osteolytic petrous bone lesion with central calcification and enhancement. OOosteoid osteoma ER -