What is known: • Post-appendectomy abscess is a well-known and feared complication, occurring in up to 24 % of the children treated surgically for appendicitis. • Several strategies are available to treat this condition, all with advantages and disadvantages.

What is new: • Noninvasive strategy is a safe strategy for children with a PAA in a stable condition. • An overview of the literature (the first to our knowledge) supports the above-mentioned statement.