Dr. Sadegh Nezam-mafi ( Persian: صادق نظاممافی, 1925 in Tehran – 2009 in Tehran) was an Iranian physician and a pioneer of nuclear medicine in Iran. [1] He introduced nuclear endocrinology to the country in 1960 with a thyroid probe and a rectilinear scanner. [2] In 1972 he published "Diagnostic Value of Liver Scan in Operated Echinococcus Cyst" in the German journal Strahlentherapie Sonderb. [3]