Abstract
Self-injection of non-medical substances, such as mineral or baby oil, into the breast for augmentation is an unsafe practice and can lead to serious complications. Chronic granulomatous inflammation and fat necrosis may develop, and the imaging findings may mimic breast cancer, creating diagnostic and therapeutic challenges. We present the case of an 18-year-old woman who developed bilateral breast pain and masses after self-injection of baby oil. We highlight the radiological and histopathological features and remind clinicians to consider foreign-body granulomatous reactions in the differential diagnosis of suspicious breast lesions.