title: Granular cell tumor of the intradural extramedullary spinal cord : report of two cases with respect to radiological differential diagnosis.
abstract: Granular cell tumors (GrCTs) of the spinal cord are rare benign tumors with a high rate of local recurrence. Only 6 cases of spinal GrCTs have been reported. GrCT is difficult to distinguish from other benign tumors such as schwannoma using imaging. A radiological "speckled dots" sign may be a useful differentiating feature of GrCT based upon experience with two cases and a review of the literature.
authors.affiliation: Department of Neurosurgery, Spine Center, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
authors.forename: Chang-Hyun
authors.initials: CH
authors.lastname: Lee
authors.forename: Seung-Jae
authors.initials: SJ
authors.lastname: Hyun
authors.forename: Joon Woo
authors.initials: JW
authors.lastname: Lee
authors.forename: Seung-Chul
authors.initials: SC
authors.lastname: Rhim
keywords: Granular cell tumor; Intradural extramedullary tumor; Magnetic resonance imaging; Schwannoma; Spinal cord
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