LUS is confirmed to be a reliable imaging technique for the diagnostic work-up of febrile children with respiratory distress, consistent not only with CXR results as previously reported by others but also with clinical and laboratory data. In the hands of trained clinicians, it may represent a valuable supplemental bedside tool for a rapid evaluation in such circumstances.

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Community-acquired pneumonia (CAP) is a leading global cause of paediatric morbidity and mortality. International guidelines recommend that a chest X-ray (CXR), if needed, is the first choice for diagnosing CAP in children and that lung ultrasounds (LUS) should be limited to pleural effusions. 1,2 However, some clinicians are now suggesting that LUS is an important complementary imaging tool for CXR when evaluating diagnoses of paediatric pneumonia. 3,4