A Case of Synchronous Bilateral Male Breast Cancer with a Family History of Male Breast Cancer

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  • 男性乳癌の家族歴を有する同時性両側男性乳癌の1例
  • 症例 男性乳癌の家族歴を有する同時性両側男性乳癌の1例
  • ショウレイ ダンセイ ニュウガン ノ カゾクレキ オ ユウスル ドウジセイ リョウガワ ダンセイ ニュウガン ノ 1レイ

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Abstract

<p>A 67-year-old male was referred to the surgery/pathology department. The tumor in both of his mammary glands was examined. He was diagnosed with synchronous bilateral breast cancer using mammography, ultrasonography, breast magnetic resonance imaging scan, and core needle biopsy. Bilateral total mastectomy and sentinel lymph node biopsy were performed. Histopathological examination revealed invasive ductal carcinomas (no special type) in both breasts, pT1N0M0. These tumors were positive for estrogen and progesterone receptors and negative for HER2/neu, and the Ki67 score was less than 10%. His older brother was diagnosed with breast cancer ; thus, we performed genetic testing of BRCA1/2 ; however, no mutations were observed in the BRCA genes.</p>

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