School ager status post left chest tube placement with bloody output from the chest tube and a decreased hematocrit after chest tube placement

CT of chest tube puncturing an intercostal blood vessel causing active bleeding
Arterial (above) and venous (below) phase axial CT with contrast of the chest shows a large hematoma inside the ribs at the chest tube insertion site. There is also a blush of contrast near the chest tube that increases on delayed imaging representing active bleeding.

The diagnosis was a chest tube malfunction in the form of a chest tube puncturing an intercostal blood vessel causing active bleeding.

Teenager with recurrent fevers

CT of pulmonary tuberculosis
Axial CT with contrast of the chest (above) shows a small thick-walled cavitary lesion in the left upper lobe along with some associated opacities peripheral to it as well as in the right upper lobe. MIP axial CT with contrast of the chest (below) shows the entire left lower lobe to be filled with tree-in-bud opacities. There is also a nodular opacity in the anterior right lung.

The diagnosis was tuberculosis pneumonia.

Preschooler with recurrent episodes of respiratory distress over several years

CXR of chronic granulomatous disease
Initial CXR AP (above) shows an opacity in the medial aspect of the right lower lobe which took a year to resolve radiographically. CXR AP obtained 2 years after the initial CXR (below left) shows a dense opacity in the medial aspect of the right upper lobe which was only slightly reduced in size on a CXR obtained a year later (below right).

The diagnosis was chronic granulomatous disease.

Preschooler with chronic respiratory distress and a long-standing abnormal CXR

CXR and CT of chronic airway foreign body in the form of a mucous plug
CXR AP and lateral (above) show an opacity in the left upper lobe that was stable over several months. Coronal CT with contrast of the chest (below) shows complete atelectasis of the left upper lobe. There is a soft tissue density present in the lumen of the left mainstem bronchus interrupting the continuity of the left mainstem bronchus. At bronchoscopy this was found to be a very thick mucous plug.

The diagnosis was chronic airway foreign body due to an impacted mucous plug.