Nodular Fasciitis of the Breast

  • Hayashi Hironori
    Department of Breast and Endocrine Surgery, Nagoya University Hospital
  • Nishikawa Mikiko
    Department of Breast and Endocrine Surgery, Nagoya University Hospital
  • Watanabe Reiko
    Department of Breast and Endocrine Surgery, Nagoya University Hospital
  • Sawaki Masataka
    Department of Breast and Endocrine Surgery, Nagoya University Hospital
  • Kobayashi Hironobu
    Department of Breast and Endocrine Surgery, Nagoya University Hospital
  • Shibata Arihiro
    Department of Breast and Endocrine Surgery, Nagoya University Hospital
  • Kikumori Toyone
    Department of Breast and Endocrine Surgery, Nagoya University Hospital
  • Nagasaka Tetsuro
    Department of Clinical Pathology, Nagoya University Hospital
  • Imai Tsuneo
    Department of Breast and Endocrine Surgery, Nagoya University Hospital

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Abstract

We report a case of nodular fasciitis of the breast, which is a rare histological type of breast tumor. A 41-year-old woman had noticed a mass in her right breast. The mass was elastic-hard, 15 mm×15 mm in size, and located mainly in the upper outer quadrant of the right breast. Mammography demonstrated an oval dense mass with spiculation. Ultrasonography revealed a hypoechoic lesion, 8 mm×10 mm in size. Fine needle aspiration cytology and core needle biopsy showed no evidence of malignancy. Excisional biopsy was performed. The tumor was characterized by a proliferation of fibroblastic cells. Histologically, the excised tumor was consistent with nodular fasciitis of the breast. Nodular fasciitis should be considered in the differential diagnosis of a mass suspicious for breast cancer.

Journal

  • Breast Cancer

    Breast Cancer 14 (3), 337-339, 2007

    The Japanese Breast Cancer Society

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