RT Journal Article SR Electronic T1 Intraparotid Facial Nerve Schwannoma: A Report of Five Cases and an Analysis of MR Imaging Results JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1328 OP 1330 VO 26 IS 6 A1 Shimizu, Ken A1 Iwai, Hiroshi A1 Ikeda, Koshi A1 Sakaida, Noriko A1 Sawada, Satoshi YR 2005 UL http://www.ajnr.org/content/26/6/1328.abstract AB Summary: We present five cases of intraparotid facial nerve schwannoma. In four of the five cases, tumors arising from the main facial nerve trunk were centered just below the skull base near the stylomastoid foramen and had a small cranial extension into the lower facial nerve canal. In three cases, each tumor had higher signal intensity around the periphery on T2-weighted images (target sign). These findings may be highly suggestive of an intraparotid facial nerve schwannoma.