A Case of Invasive Micropapillary Carcinoma of the Breast in an 82-year-old Man

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  • EGUCHI Yuka
    Department of Digestive Surgery, Breast and Thyroid Surgery, Kagoshima University Hospital
  • KIJIMA Yuko
    Department of Digestive Surgery, Breast and Thyroid Surgery, Kagoshima University Hospital
  • HIRATA Munetsugu
    Department of Digestive Surgery, Breast and Thyroid Surgery, Kagoshima University Hospital
  • YOSHINAKA Heiji
    Department of Breast Surgery, Kagoshima City Hospital
  • YOSHIOKA Takako
    Department of Diagnostic Pathology, National Center for Child Health and Development
  • NATSUGOE Shoji
    Department of Digestive Surgery, Breast and Thyroid Surgery, Kagoshima University Hospital

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Other Title
  • 82歳男性乳腺に発生した浸潤性微小乳頭癌の1例
  • 症例 82歳男性乳腺に発生した浸潤性微小乳頭癌の1例
  • ショウレイ 82サイ ダンセイ ニュウセン ニ ハッセイ シタ シンジュンセイ ビショウ ニュウトウガン ノ 1レイ

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Abstract

An 82-year-old man who visited a neighboring hospital because of a mass lesion of the left breast was detected to have a 25-mm tumor right under the left nipple. He was referred to our hospital with a diagnosis of invasive ductal carcinoma following a fine needle biopsy. On physical examination, we palpated a tumor right under the left nipple which showed redness on the skin and fixation to the chest wall. Ultrasonography (US), mammography (MMG) and computed tomography (CT) revealed invasive ductal carcinoma of the left breast. The histological diagnosis was invasive ductal carcinoma (cT2N1M0, Stage IIB) and total mastectomy with axillary lymph node resection was performed. The final pathological diagnosis was invasive micropapillary carcinoma (IMPC) and multiple metastases of axillary lymph nodes [pT2, 23×22×17mm, f, s, HG II, NG II, 1y+, v-, pN3a (Level-I : 16/17, Level-II : 10/10) ER(+), PgR(+), HER2(-), MIB-1 : 9%]. After the surgery, he received radiation therapy to the chest wall and the supraclavicular fossa and endocrine therapy. He is alive without recurrence as of 16 months after the operation. Since invasive micropapillary carcinoma rarely arises in the male breast, we present our case together with a review of the literature.

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