School ager who just had an old left central venous catheter removed and a new right central venous catheter placed

CXR of retained central venous catheter fragment
CXR AP shows the tip of the new right central venous catheter to be in the superior vena cava. Also seen is a short piece of catheter in the left brachiocephalic vein.

The diagnosis was central venous catheter malfunction with a retained fragment of the removed left central venous catheter in the left brachiocephalic vein.

Newborn with complex congenital heart disease

CT of umbilical venous catheter in normal position
Sagittal CT with contrast of the chest shows the umbilical venous catheter to course through the umbilical vein into the liver to the left portal vein to the ductus venosus to the left hepatic vein to the inferior vena cava with its tip near the junction of inferior vena cava and the right atrium.

The diagnosis was normal position of the umbilical venous catheter with the tip near the junction of the inferior vena cava and the right atrium.

Newborn after PICC placement

AXR of PICC line tip in spinal canal
AXR lateral (left) shows the tip of a right lower extremity PICC line looping back upon itself and projecting over the spinal canal. AXR AP (right) after reposition of the line shows the tip projecting over the inferior vena cava. The patient also has a large anterior abdominal wall defect containing loops of bowel which is covered by a membranous sac.

The diagnosis was peripherally inserted central venous catheter malfunction with the tip within the spinal canal in a patient with an ompahlocele.

School ager with asymmetric pulses in the upper and lower extremities

CT of post-ductal coarctation of the aorta
Sagittal CT (above left) and 3D CT (above right) with contrast of the chest show significant narrowing of the proximal descending aorta distal to the origin of the left subclavian artery. Anterior 3D CT (below left) shows dilated bilateral collateral internal mammary arteries and posterior 3D CT (below right) shows dilated bilateral collateral 3rd-8th intercostal arteries.

The diagnosis was post-ductal coarctation of the aorta.

Young adult with complex congenital heart disease and fever, fatigue and left upper quadrant pain

CXR and V/Q scan and CT of pulmonary embolism
CXR AP (above left) shows dextrocardia and an infiltrate in the left lower lobe. Anterior ventilation image from a V/Q scan (above middle) shows near-normal ventilation to the lungs. Posterior perfusion image from a V/Q scan (above left) shows markedly decreased perfusion to the left lung, with 95% of the perfusion going to the right lung. Coronal CT with contrast of the chest (below left) shows a massively enlarged left pulmonary artery with thrombus in its left lower lobe branches. Axial images (below middle and below right) show multiple peripheral infarcts in the left lower lobe.

The diagnosis was massive pulmonary embolism in the left pulmonary artery.

School ager with chest wall ecchymosis post motor vehicle accident

CT of false positive thoracic aortic injury / aortic dissection
Non-gated axial (above left) and coronal (above right) CT with contrast of the chest show a line in the lumen of the aorta from the sinotubular junction to the origin of the brachiocephalic artery. Repeat gated axial (below left) and coronal (below right) CT with contrast of the chest show absence of the previously seen line in the lumen of the aorta from the sinotubular junction to the origin of the brachiocephalic artery.

The diagnosis was false positive thoracic aortic injury due to the non-gated nature of the original CT scan.

Infant with choking with feedings

CT angiogram of right aortic arch with aberrant left subclavian artery
Lateral image from an esophagram (above left) shows a posterior indentation on the esophagus which was persistent. Coronal CT with contrast of the chest (above right) with 3D reconstructions (below) show a right-sided aortic arch with an aberrant left subclavian artery that originated from a Kommerell diverticulum and that courses behind the esophagus. The ductus arteriosus was noted to extend from the Kommerell diverticulum and completed the vascular ring.

The diagnosis was right aortic arch with aberrant left subclavian artery.

Teenager with abdominal pain

CT of azygos continuation of the inferior vena cava
Coronal CT with contrast of the abdomen (below) shows interruption of the infrahepatic inferior vena cava which then communicates with the hemiazygos vein to the left of the spine which then via dilated azygos and hemiazygos venous collaterals alongside the vertebral body on the axial CT (above) ultimately drain into the superior vena cava.

The diagnosis was azygos continuation of the inferior vena cava.

Newborn with an abnormal fetal echo

CT of interrupted aortic arch
Axial CT with contrast of the heart (above), obtained in a venous phase, shows discontinuity of the ascending and descending aorta while the sagittal image (below right) shows a dilated patent ductus arteriosus reconstituting the descending aorta and the coronal image (below left) shows dextrocardia.

The diagnosis was interrupted aortic arch supplied by a patent ductus arteriosus in a patient with dextrocardia.