Colon updates 2020 - some old, some new but novel insights throughout

摘要

This year's assemblage of reviews from the nether regions takes us on an anatomical journey from the anal canal to the appendix (and even into the neorectum formed by the distal ileum) in which we encounter conditions that range from ancient (anal fissures) to recently described (check point inhibitor-related colitis). In each contribution new approaches to diagnosis management are highlighted.