Triple-negative breast cancer presented with metastasis to the heart as first sign of recurrence

A 34-year-old woman had a history of breast cancer and underwent a right-sided nipple-sparing mastectomy and axillary dissection in 2014. She was staged as pT2N2aM0, IIIA, and the histopathological type was TNBC, grade 3. Ki-67 index was 35%-40%. The patient received four cycles of adjuvant dose-dense doxorubicin and cyclophosphamide followed by four cycles of docetaxel. Radiotherapy to her chest wall and regional lymph node was performed with 60 Gy in 30 fractions as adjuvant therapy, and she was followed without any recurrence until February 2019.