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뇌교종의 수술후 변화와 잔류/재발 종양의 MR 영상소견 비교
Comparison of MR Imaging Findings Between Post-operative Change and Residual/Recurrent Tumor in Cerebral Glimoa

심정석    (서울대학교 의과대학 진단방사선과학교실  );
  • 초록

    Purpose : To describe the MR imaging findings of post-operative change and residual/recurrent tumor followingresection of the glioma and to determine whether there are any specific MR imaging findings useful fordifferentiation of post-operative change from a residual/recurrent tumor. Materials and Methods : Weretrospectively analysed 71 post-operative follow-up brain MR images of 26 patients who had undergone surgicalresection of intracranial glioma. They consisted of 49 MRI studies of 12 patients with post-operative change and22 MRI studies of 14 patients with residual/recurrent tumors. The follow-up MRI examinations were performed fromone to 75 months after tumor resection. The lesion was defined as post-operative change when any enhancing lesiondisappeared or diminished during follow-up MRI studies of at least 20 months. The diagnosis of residual/recurrenttumor was established when on MR images, lesion size increased definitively during the follow up period of betweenfour and 66 months ; residual/recurrent tumors were surgically proven in five patients. The shape, degree ofcontrast enhancement and time of appearance and disappearance of the lesions were analysed. Results :Post-operative change consisted of hemorrhage(n=3), marginal(n=7) and nodular(n=1) enhancement of sugical bed,adjacent dural enhancement(n=9), extracerebral fluid collection(n=4) and only tissue defect(n=1). Hemorrhage wasobseved at between two and eight months ; marginal and nodular enhancement of surgical bed were seen at betweenthree and 30 months (usually less than one year) ; dural enhancement and fluid collection were seen at betweenthree and 75 months. Residual/recurrent tumor appeared most frequently as enhancing solid nodules(n=7) or solidand cystic masses(n=2) followed by non-enhancing solid nodules(n=3). In five of seven cases, marginal enhancementof a residual/recurrent tumor appeared after more than one year. Conclusion : Marginal and dural enhancementaround surgical tissue defects are the most common finding of post-operative change, whereas nodular enhancementis the most frequent finding of the residual/recurrent tumor. Marginal enhancement lasting longer than one yearmay, however, be an early finding of residual/recurrent tumor.


  • 주제어

    Brain neoplasms, MR .   Magnetic resonance(MR), contrast enhancement.  

  • 참고문헌 (11)

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  • 심정석 (3)

    1. 1996 "성장호르몬분비 뇌하수체선종:임상 및 자기공명영상소견" 대한방사선의학회지 = Journal of the Korean Radiological Society 35 (4): 441~446    
    2. 1997 "인터넷을 활용한 방사선과학교 교육자료의 제작" 대한방사선의학회지 = Journal of the Korean Radiological Society 37 (6): 1145~1148    
    3. 2001 "전립선암의 진단에서 경직장초음파검사의 유용성: 규칙적 6분 생검 결과와의 비교" 대한방사선의학회지 = Journal of the Korean Radiological Society 45 (2): 195~200    

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