Shinsuke Sasada, Naoto Kondo, Hiroya Hashimoto, Yuko Takahashi, Kaori Terata, Kumiko Kida, Yasuaki Sagara, Takayuki Ueno, Keisei Anan, Akihiko Suto, Chizuko Kanbayashi, Mina Takahashi, Rikiya Nakamura, Toshiyuki Ishiba, Michiko Tsuneizumi, Seiichiro Nishimura, Yoichi Naito, Fumikata Hara, Tadahiko Shien, Hiroji Iwata
PURPOSE: Mammography screening has increased the detection of subcentimeter breast cancers. The prognosis for estrogen receptor (ER)-positive and human epidermal growth factor receptor 2 (HER2)-negative T1a/bN0M0 breast cancers is excellent; however, the necessity of adjuvant endocrine therapy (ET) is uncertain. METHODS: We evaluated the effectiveness of adjuvant ET in patients with ER-positive and HER2-negative T1a/bN0M0 breast cancer who underwent surgery from 2008 to 2012...
September 9, 2023: Breast Cancer Research and Treatment