Antonio Ieni is a Professor at the Department of Human Pathology in Adult and Developmental Age "Gaetano Barresi", Section of Pathology, University of Messina. He obtained his degree in Medicine and Surgery from the University of Messina (October 2000). He specialized in Anatomic Pathology at the University of Messina (November 2005). He obtained his Ph.D. in Oncology from the University of Messina in 2012. His main fields of activity include pathology, oncology, immunohistochemistry, HER2, gastrointestinal disease, breast carcinomas, predictive and prognostic biomarkers.