Radiation damage to the lungs and heart in a patient after radiation therapy for breast cancer

Radiation therapy (LT) is one of the main methods of treating malignant tumors. LT is recommended for all patients with breast cancer (BC) to achieve optimal local control of the disease. Postradiation lesions of the lungs and heart are serious complications of LT in these patients. In the presented clinical case of a patient with breast cancer after LT, a rare lung lesion was diagnosed — radiation-induced developing pneumonia in combination with post-radiation heart damage in the form of cardiac arrhythmias and effusion pericarditis.