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KMID : 0363219930310020224
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Korean Journal of Dermatology
1993 Volume.31 No. 2 p.224 ~ p.227
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Silica Granuloma
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Abstract
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A 29-year-old woman complained of a painless, firm nodule with brownish patch on her left cheek for 5 months. She had had undergone a traffic accident 6 months before, and the normally healed wound on her cheek became reddish and infiltrated.
A Skin biopsy specimen obtained from her skin lesion showed a foreign body reaction with histiocytes and numerous crystalline structures. These particles were birefringent under polarized light microscopy. Scanning electron microscopy revealed
numerous
crystalline particles. Energy dispersive xray analysis of the crystal revealed a sharp peak representing silica. (Kor J Dermatol 1993 ; 31 (2) : 224-227)
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