Technical Challenges of Heart Avoidance for Synchronous Breast and Lung Cancers in a Post-Menopausal Female: a Planning Case Report From a Safety-Net Hospital

Abstract Synchronous breast and lung cancers are rare and pose technical challenges for radiotherapy management. We present the case of a 63-year-old asymptomatic female with synchronous left breast HER2-positive invasive ductal carcinoma and right upper lobe atypical carcinoid tumor.