Marek Ruchała, MD, PhD, is currently working as a Professor and a Chairman in the Department of Endocrinology, Metabolism, and Internal Medicine at Poznan University of Medical Sciences in Poznan, Poland. His research interests mainly focus on thyroid imaging; thyroid developmental anomalies; thyroid nodules; thyroid cancer; thyroiditis; and acromegaly. He is the guest editor of JCM. He is also a member of the reviewer board for the journals: BMC Endocrine Disorders; Cancers; Endocrine; European Radiology; Journal of Clinical Medicine; The Journal of Clinical Endocrinology and Metabolism.