Comment to the letter Acute appendicitis after a colonic endoscopic submucosal resection

: We read with interest the letter to the editor "Acute appendicitis after a colonic endoscopic submucosal resection" by Serrano Gonzalez J et al., which was published in the Revista Espanola de Enfermedades Digestivas (The Spanish Journal of Gastroenterology) issue 3, 2018. We would like to clarify the following aspects mentioned in this letter.