title: Multiple spinal ring-enhancing schwannomas.
abstract: We present a case of intradural multiple ring-enhancing lesions in a 20-year-old male with symptoms and signs of progressive spastic paraparesis. An MRI of the thoracolumbar area showed 2 peculiar ring-enhancing lesions, at the level of T12 and L1. The differential diagnosis includes inflammatory or infectious lesions in addition to rare cystic tumors. The patient underwent surgical resection of the 2 lesions with an uneventful perioperative course. Histologically, the diagnosis was consistent with cystic schwannomas.
authors.affiliation: Department of Neurosciences, King Faisal Specialist Hospital and Research Centre, MBC 76, PO Box 3354, Riyadh, Kingdom of Saudi Arabia. Tel. +966 (1) 4647272 Ext. 32772/32773.  Fax. +966 (1) 4424763.  E-mail: alkhani@yahoo.com.
authors.forename: Ahmed M
authors.initials: AM
authors.lastname: Alkhani
authors.forename: Ahmed J
authors.initials: AJ
authors.lastname: Al-Zahrani