These Frequently Asked Questions (FAQs) and their answers about invasive lobular carcinoma (ILC), also known as lobular breast cancer, are for informational and educational purposes only to assist patients and caregivers with learning about ILC. It should be noted that the answers provided in this document reflect the prevailing opinion in the U.S. The information is not meant to replace the advice and information patients receive from their health care providers. More research and clinical trials are needed to improve outcomes for systemic treatments such as endocrine treatment, chemotherapy, immunotherapies, imaging, and targeted treatments, and for potential future targeted therapies or immunotherapy that might result in better long-term outcomes for ILC patients.
(Published 2018; Updated 1/26/2023)