CXR PA (above left) shows an opacity in the medial left lower lobe that obscures the medial left hemidiaphragm. CXR lateral (above right) shows a spine sign over the lower thoracic vertebral bodies. Axial CT without contrast of the chest (below left) shows a dense infiltrate in the posterior aspect of the left lower lobe while the sagittal CT (below right) again shows the infiltrate to be located inferiorly and posteriorly in the chest.
