Carcinoma en cuirasse.

Carcinoma en cuirasse (CeC) is an extremely rare form of cutaneous metastasis of breast cancer. Guidelines for diagnosis and treatment of CeC are limited due to the small number of reported cases. It can be difficult to distinguish CeC from benign etiologies on initial presentation, but CeC can be easily distinguished by histopathology. Treatment of CeC focuses on palliation with no consensus on therapy guidelines. Treatment modalities that have been explored include chemotherapy, radiotherapy (with or without local hyperthermia), and hormonal antagonists. Here we present a 62-year-old woman with recurrent triple-negative breast cancer manifesting as CeC to the chest wall.