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KMID : 1134120170200030314
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Journal of Breast Cancer
2017 Volume.20 No. 3 p.314 ~ p.318
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Invasive Micropapillary Carcinoma in Axillary Ectopic Breast and Synchronous Ductal Carcinoma In Situ in the Contralateral Breast
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Oh Seung-Won
Lim Hyo-Soon
Lee Ji-Shin
Moon Sung-Min
Park Min-Ho
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Abstract
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The development of ectopic breast tissue is attributable to the failure of primitive mammary tissue to regress after the development of the mammary ridge, except at pectoral breast sites, and is most often evident in the axillae. Several benign and malignant breast diseases have been reported in ectopic axillary breast tissues. The most common cancerous pathology of ectopic breast tissue is invasive ductal carcinoma. Ectopic breast cancer presenting with simultaneous primary cancer of the pectoral breast is extremely rare. Herein, we report an invasive micropapillary carcinoma of an axillary ectopic breast, combined with a synchronous ductal carcinoma in situ in the contralateral pectoral breast of a 61-year-old woman.
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KEYWORD
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Axilla, Breast neoplasms, Choristoma
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