Tsujio Gen, Kashiwagi Shinichiro, Asano Yuka, Goto Wataru, Takada Koji, Morisaki Tamami, Noda Satoru, Takashima Tsutomu, Onoda Naoyoshi, Ohsawa Masahiko, Hirakawa Kosei, Ohira Masaichi
Dept. of Surgical Oncology, Osaka City University Graduate School of Medicine.
Gan To Kagaku Ryoho. 2017 Nov;44(12):1059-1061.
A breast cancer with tumors smaller than or equal to 5mm in diameter is treated as a microscopic lesion and axially lymph node metastasis is considered to be rare. A 52-year-old female was found to have an abnormal shadow on mammography. An ultrasonography revealed a poorly defined and irregular shaped mass with calcification, 4mm in diameter, in the AC area of her left breast. We performed vacuum-assisted biopsy and diagnosed with invasive ductal carcinoma. Under a preoperative diagnosis of left breast cancer with cT1aN0M0, stage I , Luminal A like, we underwent partial mastectomy with sentinel lymph node biopsy. The intraoperative consultation suggested sentinel lymph node metastasis and we therefore performed level II axillary lymph node dissection. The size of the tumor was 4mm and diagnosed with pT1a breast cancer. Histopathological diagnosis was papillotubular carcinoma. Radiotherapy was performed(total: 50 Gy)followed by endocrine therapy (tamoxifen). She is alive without recurrence and metastasis 5 years after surgery.
直径小于或等于5mm的乳腺癌被视为微小病变，且腋窝淋巴结转移被认为很少见。一名52岁女性在乳房X光检查中发现异常阴影。超声检查显示左乳AC区有一个边界不清、形状不规则且有钙化的肿块，直径4mm。我们进行了真空辅助活检，诊断为浸润性导管癌。在术前诊断为左乳癌cT1aN0M0，I期，Luminal A样的情况下，我们进行了保乳手术并进行了前哨淋巴结活检。术中会诊提示前哨淋巴结转移，因此我们进行了II级腋窝淋巴结清扫。肿瘤大小为4mm，诊断为pT1a期乳腺癌。组织病理学诊断为乳头管状癌。术后进行了放疗（总量：50Gy），随后进行内分泌治疗（他莫昔芬）。术后5年她仍存活，无复发和转移。
