Investigative Magnetic Resonance Imaging

Korean Society of Magnetic Resonance in Medicine (대한자기공명의과학회)
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Solitary Fibrous Tumor of the Ischiorectal Fossa : CT and MRI Findings

좌골직장와에서 기원하는 고립섬유종양: CT, MR 영상소견의 증례 보고

  • Kim, Ki-Hwan (Department of Radiology, College of Medicine, Korea University) ;
  • Cha, Sang-Hoon (Department of Radiology, College of Medicine, Korea University) ;
  • Yeom, Suk-Keu (Department of Radiology, College of Medicine, Korea University) ;
  • Lee, Seung-Hwa (Department of Radiology, College of Medicine, Korea University) ;
  • Chung, Hwan-Hoon (Department of Radiology, College of Medicine, Korea University)
  • 김기환 (고려대학교 안산병원 영상의학과) ;
  • 차상훈 (고려대학교 안산병원 영상의학과) ;
  • 염석규 (고려대학교 안산병원 영상의학과) ;
  • 이승화 (고려대학교 안산병원 영상의학과) ;
  • 정환훈 (고려대학교 안산병원 영상의학과)
  • Received : 2010.03.16
  • Accepted : 2011.03.31
  • Published : 2011.04.30
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Abstract

Solitary fibrous tumor (SFT) is a rare neoplasm, which is usually presented as a pleural based mass, but can also occur in unusual locations based on its mesenchymal origin. However, the radiologic features of SFT occurred in the ischiorectal fossa have been rarely reported. In this case, we describe the MRI findings in a case of a SFT involving the ischiorectal fossa of a 36-year-old man. The tumor appeared as homogeneous iso-signal intensity relative to the adjacent muscle on T1 weighted images, a mixed high signal intensity on the T2 weighted images, and heterogeneous enhancement following the administration of the contrast material.

고립섬유종양은 드문 종양으로써 주로는 흉막기원의 형태로 발생하지만, 드물게 다양한 위치에서 중간엽세포 기원의 종양으로 발생할 수 있다. 하지만 현재까지 좌골직장와에서 발생한 고립섬유종양의 영상적 보고는 매우 드물게 보고되었다. 저자들은 36세 남자환자의 좌골직장와에서 발생한 고립섬유종양의 증례를 자기공명 소견을 중심으로 기술하고자 한다. 종양은 T1 강조영상에서 주변 근육조직과 비슷한 균일한 신호강도를 보이고, T2 강조영상에서는 혼합된 고신호강도를 보이며, 조영증강 후 T1 강조영상에서는 불균일한 조영증강 소견을 보였다.

Keywords

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