16th February 2024

A 67-year-old lady had been admitted to the hospital with a 2-day history of chest pain.

A 67-year-old lady had been admitted to the hospital with a 2-day history of chest pain. An ECG revealed Q waves in leads II, III and aVF with associated T-wave inversion. She later developed acute shortness of breath with new bibasal crepitation. A new pan systolic murmur is heard. CXR confirms the presence of bibasal consolidation with increased hilar shadowing. 

What structure has been compromised, leading to shortness of breath?