Investigative Magnetic Resonance Imaging

  • 제13권1호
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  • Pages.54-62
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  • 2009
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  • 2384-1095(pISSN)
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  • 2384-1109(eISSN)
대한자기공명의과학회 (Korean Society of Magnetic Resonance in Medicine)
권호 표지

뇌척수 신경장관 낭종: 다양한 자기공명영상소견

Craniospinal Neurenteric Cysts: Various MR Imaging Features

  • 전세정 (서울대학교병원 영상의학과) ;
  • 손철호 (서울대학교병원 영상의학과) ;
  • 김은희 (서울대학교병원 영상의학과) ;
  • 손규리 (서울대학교병원 영상의학과) ;
  • 박성혜 (서울대학교병원 해부병리학과) ;
  • 장기현 (서울대학교병원 영상의학과)
  • Jeon, Se-Jeong (Departments of Radiology, Seoul National University Hospital) ;
  • Sohn, Chul-Ho (Departments of Radiology, Seoul National University Hospital) ;
  • Kim, Eun-Hee (Departments of Radiology, Seoul National University Hospital) ;
  • Son, Kyu-Ri (Departments of Radiology, Seoul National University Hospital) ;
  • Park, Sung-Hye (Departments of Pathology, Seoul National University Hospital) ;
  • Chang, Kee-Hyun (Departments of Radiology, Seoul National University Hospital)
  • 발행 : 2009.06.30
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초록

목적: 신경장관 낭종은 중추신경계에 발생하는 비 종양성, 발생학적 낭종으로 다양한 자기공명 영상 소견을 보인다. 이 연구의 목적은 저자들이 경험한 두개내와 척수내의 신경장관 낭종의 다양한 자기공명 영상 소견을 보이고 설명하고자 한다. 대상과 방법: 저자들의 병원에서 경험한 여섯 명의 신경장관 낭종환자를 대상으로 하였으며, 이 환자들의 자기공명 영상에서 병변의 해부학적 위치, 병변의 신호강도, 병변의 크기 및 조영증강형태에 대해 후향적으로 분석하였다. 결과: 두 개의 두개강 내 병변은 소뇌교각과 사구체조 부위에 축 외 낭종으로 보였다. 세개의 척추 부위 병변은 경막내-척수외 낭종으로, 척수의 배측부위 위치하였고, 한 개의 흉추 병변은 척수 내 낭종이었다. 두 개의 두개강내 낭종과 한개의 경추부 낭종의 신호강도는 T1 강조영상에서 고 신호강도이고, T2 강조영상에서 뇌척수액과 같은 저 신호강도로 보였으며, 두개강내 병변은 모두 중등도 이상의 확산제한을 보였다. 다른 3개의 척수 병변의 신호강도는 T1과 T2강조 영상 모두에서 뇌척수액과 같은 신호강도였다. 조영증강 검사에서, 두개강 내 병변은 모두 작은 결절상 조영증강을 보였고, 한 개의 흉추부 병변은 가장자리에 환상의 조영증강을 보였다. 결론: 신경장관 낭종은 다양한 위치에서 발생할 수 있고 부분적인 결절상 또는 환상의 조영증강을 보일 수 있다. 그러므로, 비전형적인 자기공명영상소견을 보일 경우, 다른 비종양성, 종양성 낭종과의 감별진단에 포함 될 수 있다.

Purpose : Craniospinal neurenteric (NE) cysts are rare developmental non-neoplastic cysts of the central nervous system with diverse MR imaging findings. The purpose of this study was to evaluate various MR imaging findings of intracranial and intraspinal NE cysts. Materials and Methods : We retrospectively reviewed the MR imaging findings of six NE cysts that were confirmed by pathology. We evaluated anatomic location, signal intensity, size and enhancement pattern of NE cysts. Results : Two intracranial lesions were located extra-axially in the cerebellopontine angle and quadrigeminal cisterns. Three spinal lesions were intraduralextramedullary cysts, located ventral to the spinal cord, but one thoracic lesion was an intramedullary cyst. The signal intensity of the cysts was hyperintense on T1-weighted images as compared with the cerebrospinal fluid (CSF) for two intracranial lesions and one cervical lesion. In addition, all intracranial lesions showed diffusion restriction. For the remaining three spinal lesions, the signal intensity was nearly the same as the signal intensity of the CSF as seen on both T1- and T2-weighted images. On contrast-enhanced studies, two intracranial cysts showed a small nodular enhancement and one thoracic spinal lesion showed rim enhancement. Conclusion : NE cysts have various locations, signal intensities, and possible focal nodular or rim enhancement. Therefore, NE cysts can be included in the differential diagnosis of various craniospinal cystic or tumorous cystic lesions.

키워드

참고문헌

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