[1]Department of Medico-Surgical Sciences and Biotechnologies Polo Pontino Sapienza University of Rome Rome 00198 Italy;
[2]Department of Movement Human and Health Sciences Division of Health Sciences University of Rome“Foro Italico” Rome 00100 Italy;
[3]Department of Medicine and Medical Specialties Sapienza University of Rome Rome 00198 Italy;
[4]Division of Human Anatomy Department of Anatomical Histological Forensic Medicine and Orthopedics Sciences Sapienza University of Rome Rome 00198 Italy;
Cholangiocarcinoma; classifications; inflammation; cells of origin; stem cells; molecular profiling;