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KMID : 0390220000110020319
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Journal of Clinical Otolaryngology, Head and Neck Surgery
2000 Volume.11 No. 2 p.319 ~ p.322
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A Case of Polyostotic Fibrous Dysplasia of the temporal Bone and Sphenoid Sinus
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박성국/Seong Kook Park
장성호/윤혜경*/Seong Ho Jang/Hye Kyung Yoon*
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Abstract
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Fibrous dysplasia is a slowly progressive, benign disorder characterized by fibrous tissue replacement of skeleton.
The etiology is unkonwn, but is now believed to be a developmental error in which primitive fibrous tissue
proliferates within the bony medulla and enchroaches up on the cortex. Two forms of fibrous dysplasia are
recognized : monostotic form - involvement of a single bone (70%) and polyostotic multifocal form - involvement
of multiple bones (30%). The temporal bone is affected only 18% of cases and the lesion are more frequently
monostotic than polyostotic forms, which will frequently cause an acquired stenosis of external auditory canal
and develop external canal cholesteatoma. Authors experienced a case of fibrous dysplasia of temporal bone and
sphenoid sinus in 17 years old female, and reported this case with brief review of literatures.
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