In this episode of ACR on Air, we continue into part two of our Vasculitis miniseries with Dr. Sharon Chung, lead author of the 2021 ACR/VF guidelines for managing systemic vasculitis. Dr. Chung addresses how the guidelines were developed, the use of use temporal artery biopsy, and the on-going challenges with treating Takayasu's arteritis. She also highlights the success of non-invasive ultrasound techniques in Europe for diagnosing Giant Cell Arteritis (GCA) and discusses the treatment approaches for GCA.