F2 and appendicitis: Based on intraoperatively excluded appendicitis and the known SARS-CoV-2 infection of the patient’s parents, laboratory workup was extended and showed normal cardiac parameters, elevated D-dimers (2.9 μg/mL; (0.19–0.5 μg/mL)), fibrinogen (12.7 g/L; (1.7–4.1 g/L)), INR (1.3; (0.9–1.1)), low prothrombin time (59%; (70%–100%)), high ferritin (343 μg/L; (8–79 μg/L)) and hypoalbuminemia (32 g/L; (35–50 g/L)).