In a special episode, we discuss a complex, rare disease, fibrodysplasia ossificans progressiva, or FOP. Host Aaron Lohr talks with three guests: Eileen M. Shore, PhD, Cali and Weldon Research Professor in FOP and co-director of the Center for Research in FOP and Related Disorders at the University of Pennsylvania School of Medicine; Elisabeth Marelise W. Eekhoff, MD, PhD, endocrinologist, principal investigator, and medical specialist at Amsterdam University Medical Center in the Netherlands; and Michelle Davis, executive director of the International Fibrodysplasia Ossificans Progressiva Association. This episode is certified for 0.5 American Medical Association Physician’s Recognition Award (AMA PRA) Category 1™ credits and 0.5 American Board of Internal Medicine Maintenance of Certification (ABIM MOC) points. If you want those credits and points, you will have to browse to the Endocrine Society’s Center for Learning, take a pre-test, listen to this episode there, then take a post-test. This episode is supported by an educational grant from Ipsen Biopharmaceuticals Inc. Show notes, including link to the Center for Learning, are available at https://www.endocrine.org/podcast/enp84-fibrodysplasia-ossificans-progressiva — for helpful links or to hear more podcast episodes, visit https://www.endocrine.org/podcast