Abstract
Round pneumonia is a disease that occurs mainly in young children who have a clinical presentation of lower respiratory tract infection together with a chest radiograph showing round opacity. The mean age of patients with round pneumonia is five 5 years; it is uncommonly seen after the age of 8, as the collateral airways tend to be well developed by this age. In our case, we evaluated a 10-year-old girl who presented with fever, cough, and rounded densities on her chest x-ray. The rapid urinary antigen test for Streptococcus pneumoniae was positive, and serum anti-Mycoplasma pneumoniae antibodies were non-reactive. The diagnosis of round pneumonia was confirmed when the patient showed a complete recovery both clinically and radiographically after a course of penicillin and gentamicin.