Christos Iavazzo1, Nikolaos Vrachnis2, Ioannis D Gkegkes3,4. 1. Gynaecological Oncology Department, Metaxa Cancer Hospital, Piraeus, Greece. 2. Third Department of Obstetrics and Gynaecology, Attikon Hospital, National and Kapodistrian University of Athens Medical School, Athens, Greece. 3. Athens Colorectal Laboratory, Athens, Greece. ioannisgkegkes@gmail.com. 4. Department of Colorectal Surgery, Royal Devon and Exeter NHS Foundation Trust, 17c James House, Residential Village, Bovemoors Lane, Exeter, EX2 5DS, UK. ioannisgkegkes@gmail.com.