title: Diffusion-weighted imaging distinguishes recurrent epidermoid neoplasm from postoperative arachnoid cyst in the lumbosacral spine.
abstract: Diffusion-weighted imaging can be used to distinguish epidermoid tumor from arachnoid cyst in the intracranial compartment. We report the use of diffusion-weighted imaging in a postoperative spine to successfully distinguish a recurrent epidermoid tumor from arachnoid cyst in a noninvasive manner. Our case illustrates the value of this readily available sequence presently not generally used in the clinical evaluation of spinal pathology.
authors.affiliation: Department of Radiology, University of California, San Diego Medical Center, San Diego, CA, USA.
authors.forename: Lily
authors.initials: L
authors.lastname: Tang
authors.forename: Alessandro
authors.initials: A
authors.lastname: Cianfoni
authors.forename: Steven G
authors.initials: SG
authors.lastname: Imbesi
mesh_terms: D000328:Adult; D016080:Arachnoid Cysts / Q000175:diagnosis*; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis*; D003937:Diagnosis, Differential; D038524:Diffusion Magnetic Resonance Imaging; D005260:Female; D006801:Humans; D008161:Lumbosacral Region; D009364:Neoplasm Recurrence, Local; D011183:Postoperative Complications / Q000175:diagnosis; D013125:Spinal Neoplasms / Q000175:diagnosis*