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µÎ°³³» ¼¶À¯-°ñ¼º º´º¯ Intracranial Fibro-Osseous Lesion -A case report and literature review-

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Abstract

µÎ°³³» ¼¶À¯-°ñ¼º º´º¯Àº ÁßÃ߽Űæ°èÀÇ ¼®È¸È­¸¦ º¸ÀÌ´Â º´º¯ Áß ¾ÆÁÖ µå¹® °ÍÀ¸·Î¼­
1978³â Rhodes and Davis¿¡ ÀÇÇØ Ã³À½ ±â¼úµÈ ÀÌ·¡ Áö±Ý±îÁö ¾à 21·Ê°¡ º¸°íµÇ°í ÀÖ´Ù. ´Ù
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Intracranial fibro-osseous lesion, also reported as calcifying pseudoneoplasm of the
neural axis, is an uncommon lesion of the central nervous system. Since the discovery
of this entity by Rhodes and Davis in 1978, there have been a total of 21 cases reported
in the literature. We encountered one such case in a 28 year old male, who presented
with left hemiparesis for 1 year. By the MR images, a 1.5 cm sized round mass was
found at right parietal lobe near motor cortex. The mass lesion enhanced well,
homogenously and revealed clear, slightly irregular margin. Excisional biopsy of the
mass was performed. Microscopically the lesion was composed of calcified fibrous tissue
with an amorphous gray-blue, coarsely fibrillar to chondromyxoid nodular areas. Sparse
spindle cells, immunohistochemically negative for GFAP, vimentin and S-100, were
scattered within the amorphous material. Palisading spindle or polygonal cells were
present at the more cellular periphery of the lesion, which were vimentin positive but
S-100 negative. There was no evidence of the pilocytic astrocytes, Rosenthal fibers, or
GFAP positive hypertrophic astrocytes. Intracranial fibro-osseous lesions are apparently
slow-growing with generally excellent prognosis after wide excision. The etiology
remains unclear, but most investigators favor a reactive rather than neoplastic process.

Å°¿öµå

Intracranial fibro-osseous lesion; Calcifying pseudoneoplasm; Neural axis;

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