TY - JOUR T1 - Fenestration of the internal carotid artery: a rare mass of the hypotympanum associated with persistence of the stapedial artery. JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 908 LP - 910 VL - 16 IS - 4 AU - R A Koenigsberg AU - J L Zito AU - M Patel AU - J D Swartz AU - E Goldofsky AU - G Zahtz Y1 - 1995/04/01 UR - http://www.ajnr.org/content/16/4/908.abstract N2 - A 61-year-old woman was examined because of unilateral nonpulsatile tinnitus involving the right ear. CT scanning showed a soft-tissue mass in the hypotypanum. Angiographically, the mass was identified as a fenestrated or duplicated internal carotid artery associated with persistence of the stapedial artery. Embryologic considerations are discussed. ER -