Investigative Magnetic Resonance Imaging

Korean Society of Magnetic Resonance in Medicine (대한자기공명의과학회)
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Rare Form of Schwannoma as a Purely Hemorrhagic Cystic Tumor Located in an Intermuscular Plane

  • Lim, Joo Hee (Department of Radiology, Inje University Seoul Paik Hospital, College of Medicine, Inje University) ;
  • Shim, Jae-Chan (Department of Radiology, Inje University Seoul Paik Hospital, College of Medicine, Inje University) ;
  • Yoon, Byung-Ho (Department of Orthopedic Surgery, Inje University Seoul Paik Hospital, College of Medicine, Inje University) ;
  • Kang, Yun Kyung (Department of Pathology, Inje University Seoul Paik Hospital, College of Medicine, Inje University) ;
  • Lee, Kyoung Eun (Department of Radiology, Inje University Seoul Paik Hospital, College of Medicine, Inje University) ;
  • Kim, Ho Kyun (Department of Radiology, Inje University Seoul Paik Hospital, College of Medicine, Inje University) ;
  • Lee, Ghi Jai (Department of Radiology, Inje University Seoul Paik Hospital, College of Medicine, Inje University) ;
  • Suh, Jung Ho (Department of Radiology, Inje University Seoul Paik Hospital, College of Medicine, Inje University)
  • Received : 2016.12.15
  • Accepted : 2017.03.21
  • Published : 2017.03.30
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Abstract

Schwannomas are mostly solid tumors, some of which may contain cystic degenerations or hemorrhages. However, a schwannoma seen as a purely hemorrhagic cystic tumor is very rare. A 63-year-old woman was referred to the hospital due to a slow-growing mass (present for about 5 years) on her right thigh. She complained about vague pain but without neurologic symptoms such as numbness or tingling sensations. MR images showed an oval lesion with defined margins surrounded by the rectus femoris, vastus lateral, and the vastus intermedius. It was characterized as a multilocular cystic lesion composed of hemorrhagic fluid. In addition, the benign hemorrhagic cystic lesion was differentially diagnosed by radiological techniques as a hemorrhagic ganglion cyst. The lesion was surgically excised and, based on pathological features, was diagnosed as being a schwannoma. We report a purely hemorrhagic cystic schwannoma located in an intermuscular plane.

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References

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