AMERICAN JOURNAL OF NEURORADIOLOGY, vol.24, no.6, pp.1133-1135, 2003 (Journal Indexed in SCI)
A 2-year-old girl was found to have a pink pulsatile mass. behind the right tympanic membrane on physical examination. We report the high-resolution CT and MR angiographic findings of persistent stapedial artery with hypoplasia of the A1 segment of the right anterior cerebral artery.