Differentiating abdominal pain due to COVID-19 associated multisystem inflammatory syndrome from children with acute appendicitis: a score system

This study developed the Appendicitis-MISC Score (AMS) to differentiate COVID-19-associated multisystem inflammatory syndrome with gastrointestinal involvement from acute appendicitis in children. The scoring system achieved 91.9% sensitivity and 80% specificity by incorporating lymphocyte count, platelet count, D-dimer, CRP, and procalcitonin levels.