Cardiology

Question 1

Barium esophagogram shows anterior indentation/filling defect on lateral projection

Answer 1

Pulmonary sling (the only vascular anomaly that courses between the trachea and esophagus; other types of vascular rings show posterior or lateral indentation of esophagus)

Question 2

Cor pulmonale

Answer 2

• Right ventricular (RV) hypertrophy leading to RV failure caused by increased afterload caused by pulmonary hypertension
•Can be caused by chronic lung disease, bronchopulmonary dysplasia, cystic fibrosis, arterial hypertension, neuromuscular disease