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A Case of Cervical Monostotic Fibrous Dysplasia with a Large Cyst Motoyuki IWASAKI 1 , Kazutoshi HIDA 1 , Syunsuke YANO 1 , Yoshinobu IWASAKI 1 1Department of Neurosurgery, Graduate School of Medicine, Hokkaido University Hospital Keyword: cervical fibrous dysplasia , monostotic , cystic degeneration pp.429-433
Published Date 2008/5/10
DOI https://doi.org/10.11477/mf.1436100737
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 We report a rare cervical monostotic fibrous dysplasia with a large cyst in the C2 region in a 55-year-old man complaining of headache. MRI revealed an expanding bony tumor at the C2 spinous process. Gd-DTPA MRI showed slight enhancement around a cystic mass. We performed C2 laminectomy and removed the tumor. It was comprised of soft tissue in the C2 spinous process and right lamina and contained a large septated cyst filled with xanthochromic fluid. Histopathology confirmed fibrous dysplasia with typical woven bony trabeculae. His postoperative course was uneventful and outpatient follow-up detected no deficits.

 Cervical fibrous dysplasia with a distinct cyst is a rare entity and few cases have been reported in the literature. Such cysts are considered to reflect a tumor regression process. Diagnosis based on MRI and CT study alone is difficult. We suggest that these lesions be surgically resected.


Copyright © 2008, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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