Papillary thyroid cancer is the most common type of thyroid cancer, and yet in rare cases, this cancer may originate in locations other than the thyroid glands. In this episode, host Aaron Lohr talks about causes, prevalence, and treatment for papillary thyroid cancer and the rare phenomenon known as ectopic papillary thyroid cancer with , of University of Texas Health Science Center at Houston. Dr. Dhir and colleagues presented research at ENDO 2025 in San Francisco titled, “Where Is the Primary Papillary Thyroid Cancer?” Show notes are available at — for helpful links or to hear more podcast episodes, visit