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KMID : 1101820210090020084
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Journal of Breast Disease
2021 Volume.9 No. 2 p.84 ~ p.87
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Eosinophilic Mastitis: A Case Report
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Bang Hye-Won
Lee Kwan-Ho
Kim Hyeon-Sook
Min Ki-Ouk
Choi Seung-Hye
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Abstract
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Eosinophilic mastitis is a rare disease in which eosinophils infiltrate the ducts and lobules of the breast, causing mammary inflammation. Although eosinophilic mastitis is a benign condition, it presents similarly to and is often mistaken for breast cancer. Here we report the first case of eosinophilic mastitis in Korea. A 43-year-old woman presented with redness and swelling in her right breast. A breast ultrasound revealed ill-defined isoechoic and hyperechoic areas in the upper half and lower inner quadrant of the right breast combined with axillary level I lymphadenopathy. A histopathological examination by core needle biopsy demonstrated lymphoplasma cell infiltration with eosinophils. A peripheral blood examination revealed an eosinophil count of 5,000/mm³. The patient was treated with oral steroids, antibiotics, and leukotriene receptor antagonists. Four months later, the eosinophil count had returned to normal, and breast ultrasound exhibited marked improvement.
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KEYWORD
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Breast, Eosinophilia, Mastitis
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