title: Unique Imaging Features of Spinal Neurenteric Cyst.
abstract: A 50-year-old male presented with acutely progressed paraplegia. His magnetic resonance imaging demonstrated two well-demarcated components with opposite signals in one cystic lesion between the T1- and T2-weighted images at the T1 spine level. The patient showed immediately improved neurological symptoms after surgical intervention and the histopathological exam was compatible with a neurenteric cyst. On operation, two different viscous drainages from the cyst were confirmed. A unique similarity of image findings was found from a review of the pertinent literature. The common findings of spinal neurenteric cyst include an isointense or mildly hyperintense signal relative to cerebrospinal fluid for both T1- and T2-weighted images. However, albeit rarer, the signals of some part of the cyst could change into brightly hyperintensity on T1-weighted images and hypointensity on T2-weighted images due to the differing sedimentation of the more viscous contents in the cyst.
authors.affiliation: Department of Orthopaedic Surgery, Chung-Ang University College of Medicine, Seoul, Korea.
authors.forename: Hyoung-Seok
authors.initials: HS
authors.lastname: Jung
authors.affiliation: Department of Orthopaedic Surgery, Chung-Ang University College of Medicine, Seoul, Korea.
authors.forename: Sang-Min
authors.initials: SM
authors.lastname: Park
authors.affiliation: Department of Orthopaedic Surgery, Chung-Ang University College of Medicine, Seoul, Korea.
authors.forename: Gang-Un
authors.initials: GU
authors.lastname: Kim
authors.affiliation: Department of Pathology, Chung-Ang University College of Medicine, Seoul, Korea.
authors.forename: Mi Kyung
authors.initials: MK
authors.lastname: Kim
authors.affiliation: Department of Orthopaedic Surgery, Chung-Ang University College of Medicine, Seoul, Korea.
authors.forename: Kwang-Sup
authors.initials: KS
authors.lastname: Song
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009436:Neural Tube Defects / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery; D013116:Spinal Cord / Q000473:pathology / Q000601:surgery; D013118:Spinal Cord Diseases / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery
keywords: Magnetic resonance imaging; Neoplasm; Neuroenteric cyst; Spinal cord