Eur J Pediatr Surg. 2021 Feb22Online ahead of print.. https://doi.org/10.1055/s-0041-1723992 4 Turanli S, Kiziltan G. Did the COVID-19 pandemic cause a delay in the diagnosis of acute appendicitis? Keywords: COVID-19 pandemic; multiple inflammatory syndrome (MIS); multiple inflammatory syndrome in children (MIS-C); pediatric drug development EN COVID-19 pandemic multiple inflammatory syndrome (MIS) multiple inflammatory syndrome in children (MIS-C) pediatric drug development 1 3 3 07/21/21 20210701 NES 210701 TO THE EDITOR We read with interest the report about four minors who were diagnosed late with non-COVID-19 diseases during the COVID-19 pandemic.[1] We would like to emphasize that, firstly, such delays are not limited to minors, and secondly, that also in minors should we distinguish the administrative and the physiological meanings of the term "child" and hence distinguish administratively defined "children" who bodily are already mature from those young patients who bodily are indeed still children. [Extracted from the article]