Dr. Marc Pusztaszeri obtained his MD degree from the University of Lausanne, Switzerland, in 2001. He then completed a six-year residency program in Pathology at CHUV, Lausanne, Switzerland, including one year in radio-oncology. Shortly after finishing his residency, he practiced in a private laboratory (Unilabs) before returning to the academic environment at Geneva University Hospitals in 2010, where he developed his current specialization of head and neck pathology, thyroid pathology, and cytopathology. In 2012, he did a visiting fellowship at the Massachusetts General Hospital in Boston, where he established a strong connection with Prof. William Faquin, director of head and neck pathology. Since October 2017, he has been an Associate Professor of Pathology at McGill University, as well as a Staff Pathologist at the Jewish General Hospital. Dr. Pusztaszeri has primarily concentrated on cytopathology and surgical pathology of thyroid and salivary gland tumors in his clinical and research pursuits. He has authored or co authored more than 150 peer-reviewed articles and contributed to 18 chapters in key reference textbooks on thyroid and salivary gland cytopathology. He serves as an editorial board member for several important journals in the field of Cytopathology and Head and Neck Pathology, as well as for Pathology Outlines and the new World Tumor Registry websites.