Abstract

COVID-19 pandemic is of great influence worldwide. When laboratory and imaging findings are examined, lymphopenia which frequently seen in adults, rarely observed in children. Case series in the literature, indicates that white blood cell counts were mostly normal. In only one study, the lymphopenia rate was found to be relatively high at 35%. Thrombocytopenia and increased D-dimer are indicative of poor outcome. It is observed that C reactive protein, procalcitonin, lactate dehydrogenase of patients in intensive care unit are higher. Halo sign with consolidation, patchy infiltrates and ground-glass opacities are frequently observed in thorax computed tomography imaging of children diagnosed with COVID-19. It should be noted that these findings can also be seen in pneumonia caused by other viral factors such as influenza virus, parainfluenza virus, RSV, adenovirus. In addition, it is known that the first respiratory sample may be negative in pediatric cases. If there is an history of intense contact with individuals diagnosed with COVID-19 and clinical findings are similar with COVID-19, there should be a consideration of second test. Overall, the milder course of the COVID-19 pandemic in childhood is noticeable. In this review, it was aimed to evaluate the laboratory and imaging findings of COVID-19 in children.