Dr. Orlando Jorge Martins Torres graduated in Medicine from the Federal University of Maranhao (UFMA-1987), a Master's Degree in Clinical Surgery from the Federal University of Parana (UFPR-1994), a Doctorate in Clinical Surgery from the Federal University of Parana (UFPR-1997) and Free-Teaching in Clinical Surgical by the Federal University of Ceara (UFC-2000). He is currently a Full Professor and Head of the Digestive System Surgery Service at the Department of Surgery at the Federal University of Maranhao. He has experience in Surgery of the Digestive System, acting mainly in the following subjects: Cancer of the Digestive System, Surgery of the Liver, Biliary Tracts, and Pancreas, and videolaparoscopy.