S17 Ep15: FES-PET/CT Reshapes Treatment Planning in Lobular Breast Cancer and Beyond: With Megan Kruse, MD

Dr Kruse discussed the evolving role of FES-PET/CT in breast cancer, particularly invasive lobular carcinoma. She explained that FES-PET/CT uses a radiotracer to map estrogen receptor–positive cancer sites, offering advantages over traditional imaging. FIndings from a study presented at the 2025 San Antonio Breast Cancer Symposium showed that many patients experienced treatment changes based on FES-PET/CT results. The National Comprehensive Cancer Network guidelines also now recommend FES-PET/CT for use in lobular breast cancer, enhancing its clinical utility. Dr Kruse concluded by emphasizing that future research is needed to explore its use in early-stage breast cancer and for monitoring endocrine therapy response.