Investigative Magnetic Resonance Imaging

Korean Society of Magnetic Resonance in Medicine (대한자기공명의과학회)
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Rare Form of Rheumatoid Nodule around Ischial Tuberosity Mimicking Ischiogluteal Bursitis

  • 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 : 2017.02.15
  • Accepted : 2017.04.12
  • Published : 2017.06.30
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Abstract

We are reporting about a case of a rheumatoid nodule, beneath the ischial tuberosity, mimicking ischiogluteal bursitis. Rheumatoid nodules are frequently seen, at the subcutaneous soft tissues of repetitive mechanical irritation points, and prominent bones. There have been no reported cases of rheumatoid nodules, extending just beneath the ischial tuberosity bone. A 68-year-old woman with a seven-year history of rheumatoid arthritis, suffered for six months, from right buttock swelling and discomfort in seating. A cystic lesion postero-inferior to the ischial tuberosity, was noted in the MRI scan, which was thought to be ischiogluteal bursitis, because of its characteristic location and appearance. Histopathologic analysis and gross findings on the operation, revealed no evidence of bursitis.

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References

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