Teenager with weaker pulses in the left arm when compared to the right arm

MRA of arterial thoracic outlet syndrome
MRA with contrast of the chest performed via a right forearm injection with the arms in a neutral (adducted) position (above) shows a normal appearance to the subclavian arteries. MRA was then performed with the arms in a raised (abducted) position (below) which shows development of a moderate stenosis in the proximal left subclavian artery.

The diagnosis was left arterial thoracic outlet syndrome.

Young adult with progressive shortness of breath and adenoma sebaceum, seizures, and mental retardation

CXR and CT of lymphangioleiomyomatosis in a patient with tuberous sclerosis
CXR PA (above) shows bilateral basilar interstitial infiltrates with variably sized cystic spaces. Axial CT without contrast of the right lung (below left) shows a prominent reticular interstitial pattern with fibrosis and widely distributed thin walled cystic spaces. In the left lung (below right), there are similar findings along with a loculated pneumothorax that had been treated with sclerotherapy in the past.

The diagnosis was lymphangioleiomyomatosis in a patient with tuberous sclerosis.

Premature newborn with respiratory distress

CXR of high position of neurally adjusted ventilatory assist catheter / NAVA catheter
CXR AP (left) shows the tip of the nasogastric tube to project over the body of the stomach. The tip of the NAVA tube projects over the proximal esophagus. Repeat CXR AP obtained after repositioning of the NAVA tube (right) shows the tip of the NAVA tube to now project in correct position over the body of the stomach alongside the tip of the nasogastric tube.

The diagnosis was neurally adjusted ventilatory assist (NAVA) catheter malfunction with the tip of the NAVA tube initially being too high in position in the esophagus.

Premature newborn now 2 months old with respiratory distress just switched to NAVA

Neurally Adjusted Ventilatory Assist (NAVA) catheter malposition in the right mainstem bronchus
CXR AP shows the tip of the NAVA catheter to project over the right mainstem bronchus. The tip of the nasogastric tube projects over the fundus of the stomach. A VP shunt is also present coursing along the left chest.

The diagnosis was Neurally Adjusted Ventilatory Assist (NAVA) catheter malfunction with malposition of the tip of the NAVA catheter in the right mainstem bronchus.

Former premature infant requiring ventilatory support

CXR of correct NAVA catheter placement in patient with chronic lung disease.
CXR AP shows a NAVA catheter with its tip projecting over the body of the stomach, a nasogastric tube with its tip projecting over the body of the stomach, and a left upper extremity PICC with its tip projecting over the brachiocephalic vein. There are fine interstitial infiltrates present throughout the lungs

The diagnosis was normal position of the NAVA catheter in a patient with chronic lung disease.

Newborn with respiratory distress

CXR and bronchogram of bronchial atresia of the right middle lobe
CXR AP (above) shows subtle increased lucency of the right middle lobe. AP and oblique images from a vintage bronchogram 3 years later performed by injecting contrast in the right mainstem bronchus (below) shows a hyperlucent and hyperexpanded right middle lobe and contrast filling the airways of the collapsed right upper lobe and the right lower lobe but no contrast filling the airways of the hyperexpanded right middle lobe.

The diagnosis was bronchial atresia of the right middle lobe.

Newborn with respiratory distress

CXR and bronchogram of pulmonary agenesis
CXR AP and lateral (above) shows the right hemithorax, which is completely opacified, to be smaller in size than the left hemithorax and there is hyperexpansion of the left lung and mediastinal shift to the right. AP image from a vintage bronchogram (below) shows contrast filling the airways of the left upper lobe, lingula and left lower lobe. There is no contrast in the right hemithorax.

The diagnosis was pulmonary agenesis of the right lung.

Teenager with hemoptysis and large weight loss over 6 months

CXR and CT of lung metastases from embryonal cell carcinoma of testicle
CXR PA and lateral (above) shows a large round solid lesion in the right upper lobe. Axial CT without contrast of the chest (below left) shows a large solid lesion in the right upper lobe and a small solid lesion in the left upper lobe posteriorly. There is an additional solid lesion in the right lower lobe (below right).

The diagnosis was lung metastases due to embryonal cell carcinoma of the testicle.

Newborn with a left-sided chest mass on prenatal ultrasound

CXR of congenital diaphragmatic hernia
CXR AP shows complete opacification of the left hemithorax with mediastinal shift to the right and a small right pneumothorax. The arterial ECMO canula tip projects over the aortic arch and the venous ECMO canula tip projects over the right atrium. The nasogastric tube tip projects over the mid-esophagus.

The diagnosis was normal position of the extracorporeal membrane oxygenation catheters in a patient with left congenital diaphragmatic hernia.