Prof. Karim Vessal (Figure 1), MD, was a great scientist and leader in the field of basic and clinical researches, a beloved professor, physician at Shiraz University of Medical Sciences. He died on Feb 19, 2022, at the age of 89 in Shiraz, where he was Born in 1933. He came from a famous family, with well known poets, artists and philosophers. After primary and high schools, he immigrated to Europe and enrolled at the Ludwig Maximilian University of Munich, Germany and received his MD degree in 1957. After that, he studied physics and obtained a degree from Berlin School of Science and Philosophy. Then his academic training was continued in radiology in Berlin University. In 1965, Dr. Vessal obtained the board certificate and practiced in Germany and England treating the patients for a few years before returning to Iran, where he served as a co-founder of Nemazee hospital radiology ward and also the head of Radiology Department. It is not an overstatement that all radiologists in Iran learned something from him...