Presentation
Shortness of breath.
Patient Data
CTPA 3 years prior to CXR
Acute saddle pulmonary embolism extends into left and right pulmonary arteries. No right heart strain. Enlarged main pulmonary artery. Lungs clear.
CTPA 2 years prior to CXR
Bilateral right greater than left web-like and peripheral chronic pulmonary emboli. Enlarged main pulmonary artery. Lungs clear.
Case Discussion
Most appropriately treated patients with acute pulmonary embolism (PE) recover without complication. In less than 10% of cases, chronic thromboembolic pulmonary hypertension (CTEPH) develops. Acute emboli tend to be within the center of pulmonary arteries, while chronic PE tends to be peripheral and web-like.