Preschooler with cough and fever

CXR and CT of pediatric pleural empyema
CXR (above left) shows near complete opacification of the right hemithorax with no evidence of mediastinal shift. Coronal (above right) and axial (below) CT with contrast of the chest shows a large right pleural fluid collection that has multiple loculations within it which is causing complete collapse of the right lung.

The diagnosis was right pleural empyema in a patient with staphylococcus pneumonia.