Dr. Argani is a graduate of the University of Pennsylvania School of Medicine and received his pathology training at the Hospital of the University of Pennsylvania. He also completed fellowships in Oncologic Pathology and Molecular Pathology at Memorial Sloan-Kettering Cancer Center in New York. Dr. Argani is Director of the Immunopathology Laboratory of The Johns Hopkins Hospital. He has a special diagnostic interest in biliary cancer pathology. He has created the first biliary cancer tissue microarrays, which facilitates the high-throughput molecular analysis of abnormal proteins expressed by biliary cancers. He has also published on biliary tract cancers in the internationally-recognized journal Cancer.