Astrid Schweitzer (German) graduated from medical school in Germany in 1994. During university she completed her research work for her doctorate thesis on hearing loss defending it in 1995. She is a board-certified specialist in diagnostic radiology. Her main interest is head and neck radiology, particularly temporal bones, temporomandibular joints and paranasal sinuses reporting and also dental radiology. Astrid is the lead for TMC's Paranasal Sinuses (PNS) Expert Group at TMC where a novel 'structured/standardized reporting-tool' for paranasal sinuses reporting was introduced in 2015. She teaches PNS anatomy and pathology to new TMJ radiologist, double-read reports and also establish and maintain the ever growing PNS image reference image library.