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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 23:663-665, April 2002
© 2002 American Society of Neuroradiology

Case Report
HEAD AND NECK

Neurenteric Cyst in the Cerebellopontine Angle with Xanthogranulomatous Changes: Serial MR Findings with Pathologic Correlation

Ji Hoon Shin^a, Bark Jang Byun^b, Dong Won Kim^c and Deuk Lin Choi^a

^a Department of Radiology, Soonchunhyang University Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
^b Department of Neurosurgery, Soonchunhyang University Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
^c Department of Pathology, Soonchunhyang University Hospital, Soonchunhyang University College of Medicine, Seoul, Korea

Address reprint requests to Ji Hoon Shin, MD, Department of Radiology, Soonchunhyang University Hospital, 657 Hannam-Dong, Yongsan-Gu, Seoul 140–743, South Korea

Summary: We report serial MR findings in a middle-aged woman with a neurenteric cyst involving the cerebellopontine angle cistern with xanthogranulomatous changes. On the initial gadolinium-enhanced T1-weighted MR images, the solid portion of the lesion had homogeneously strong enhancement. Follow-up MR images obtained 6 months later showed that the mass had increased in size; however, the solid portion decreased in size. The enhancing solid portion corresponded to the xanthogranulomatous changes on pathologic correlation.