Introduction The aim of this study was to make the differential diagnosis between acute appendicitis and multisystem inflammatory syndrome in children (MIS-C) for patients presenting with the complaint of acute abdominal pain (AAP) and to identify the determining factors for the diagnosis of MIS-C. Materials and Methods Eighty-one children presenting with AAP/suspected AAP were evaluated. Of these, 24 (29.6%) were included in the MIS-C group (MIS-C/g) and 57 were included in the suspected appendicitis group (S-A/g), which consisted of two subgroups: appendicitis group (A/g) and control observation group (CO/g). Results Comparing MIS-C/g, A/g, and CO/g, duration of abdominal pain (2.4, 1.5, 1.8 days), high-grade fever (38.8, 36.7, 37°C), severe vomiting, and severe diarrhea were higher in MIS-C/g. Lymphocytes count (LC) was lower, while values of C-reactive protein (CRP), ferritin, and coagulopathy were higher in MIS-C/g (p < 0.05). The optimal cutoffs for the duration of abdominal pain was 2.5 days; the duration of fever, 1.5 days; peak value of fever, 39°C; neutrophil count, 13,225 × 1,000 cell/µMoL; LC, 600 × 1,000 cell/µMoL; ferritin, 233 µg/L; and D-dimer, 16.4 mg/L (p < 0.05). The optimal cutoff for CRP was 130 mg/L (sensitivity 88.9, specificity 100%, positive predictive value 100%, NPV, negative predictive value 92.5%, p < 0.001). All patients in MIS-C/g tested positive by serology by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Conclusion The duration of abdominal pain, presence of high-grade and prolonged fever, and evaluation of hemogram in terms of high neutrophil count and low LC exhibit high sensitivity and negative predictive value for MIS-C presenting with AAP. In case of doubt, inflammatory markers such as CRP, ferritin, D-dimer, and serology for SARS-CoV-2 should be studied to confirm the diagnosis.

Aim: We aimed to retrospectively evaluate the patients with labial fusion who presented to or were referred to the pediatric surgery clinic in a tertiary pediatric hospital. Material and Method: Between 01/01/2005 and 31/12/2020, 889 patients admitted or consulted to the pediatric surgery clinic due to labial fusion, age at the time of diagnosis, complaints on admission, which clinic referred the patient to the pediatric surgery clinic, treatments, recurrence, and complications were evaluated retrospectively. Results: The mean age of the patients was 2.21 (0.1–11) years. Most of the patients (82.5%) were asymptomatic. Parents noticed the condition and brought their child directly to the pediatric surgery clinic in 72.3% of the cases. Otherwise, patients were consulted to the pediatric surgery clinic from pediatric clinics, the pediatric endocrinology clinic, the pediatric nephrology clinic, or the pediatric emergency department. During the initial examination, manual separation was performed in 885 patients, and surgery was required for four patients. After the procedures, hydrotherapy with warm water and topical estrogen therapy were applied to all patients for 15 days. Recurrence was detected in 80 (9.0%) patients who were treated by manual separation. Manual separation was performed again in 78 of the patients, while surgical separation was performed in two (2.5%) patients who had severe fibrotic fusions. Conclusion: In the treatment of labial fusion, we recommend the combination of manual separation and topical estrogen cream treatment because it can be applied safely in the clinic, and the recurrence rate is low. Surgical separation is preferred in severe, thick, and fibrotic labial fusions.