Radiology You are shown a posteroanterior (PA) and lateral chest radiograph of a 75-year-old woman. What is the MOST likely diagnosis? A Atrial septal defect B Chronic pulmonary embolism C Pulmonary venous hypeension D Cor pulmonale 💡 Explanation You are shown a posteroanterior (PA) and lateral chest radiograph of a 75-year-old woman. What is the MOST likely diagnosis? ✓ Correct Answer: D. Cor pulmonale