ABSTRACT
BACKGROUND: COVID-19 is less frequent in children than in adults and affects the former less severely; despite the fact that respiratory symptoms are the most frequent, in some cases unusual manifestations can be seen. CASE-DIAGNOSIS: We present a 15-year-old boy who tested positive for SARS-COV-2 infection and onset of nephrotic syndrome, without antecedent of kidney disease and who had normal urine tests shortly before being affected by COVID-19. CONCLUSIONS: The patient described in this report, who was admitted due to nephrotic syndrome and respiratory syndrome, tested positive for COVID-19. He, based on the data review by the researchers, is the first reported case of COVID-19 with simultaneous onset of complete picture of nephrotic syndrome. The presence of both diagnoses could be a coincidence or an unusual form of presentation of COVID-19.