TY - JOUR T1 - Micropapillary Bladder Cancer Metastatic to the Breast: A Case Report and Brief Literature Review JF - In Vivo JO - In Vivo SP - 453 LP - 459 DO - 10.21873/invivo.12278 VL - 35 IS - 1 AU - ELENA LIEVORE AU - LETTERIO RUNZA AU - MICHELE GHIDINI AU - BARBARA GALASSI AU - ANDREA GALLIOLI AU - CAROLINA BEBI AU - LUCA BOERI AU - CONCETTA BLUNDO AU - CLAUDIA FRANCESCA ROSSI AU - FABRIZIO LONGO AU - GIANCARLO ALBO AU - EMANUELE MONTANARI AU - ELISA DE LORENZIS Y1 - 2021/01/01 UR - http://iv.iiarjournals.org/content/35/1/453.abstract N2 - Background: Bladder cancer (BC) usually metastasizes to the lymph nodes, bone, lung, liver and peritoneum, but rarely in the breast. Case Report: We present a case of a 66-year-old female diagnosed with a massive bladder tumor, who presented a right mammary nodule after neo-adjuvant chemotherapy. A biopsy of the nodule did not permit a definite diagnosis of metastatic spread, which was confirmed by excision of the nodule. In the literature, we found only 7 other similar cases of BC metastasis to the breast. Currently, a non-invasive method for differentiating a breast metastasis from primary cancer is lacking, although there are some clinical and radiological aspects that may help the diagnosis. Histological examination provides diagnostic certainty. Conclusion: Breast metastases from BC are unusual and consequently difficult to identify without non-invasive tools. Clinical history and histological study play a pivotal role in determining the correct diagnosis. ER -