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Usefulness of lung ultrasound in a newborn with pulmonary atelectasis.

The use of ultrasound for the evaluation of the lung is relatively recent. We describe the case of a newborn with pulmonary atelectasis and shift of the mediastinum underlining both advantages and limits of lung ultrasound (LUS). The baby, 1 month of age, was admitted to our hospital for tachypnoea, vomiting and poor weight gain. Chest X-ray (CXR) showed displacement of the heart to the right, suggesting the presence of atelectasis of the right lung. LUS confirmed the displacement of the mediastinum to the right and atelectasis of the right lung, clearly visible as a consolidation with the presence of air bronchograms. The computed tomography image showed that the lung parenchyma displayed in the right hemithorax could be attributed to the hyperexpanded left lung. However, once this information was acquired, and compared to the ultrasound picture, we were able to monitor the patient by LUS until normalization, thus avoiding further exposure to ionizing radiation. Our case, in accordance with the recent Literature, indicates that LUS can be adopted as a simple and non-invasive method for evaluating children with lung disease. It is easy to perform at bedside, allows a close follow-up and avoids the use of ionizing radiation.