Chest CT Appearances

Saddle Pulmonary Embolism (PE) CT Findings

• Large pulmonary embolism that is draped over the pulmonary trunk bifurcation
• Only occurs with acute PE
• Can be difficult to distinguish from a pulmonary artery sarcoma

Other Information About Saddle Pulmonary Embolism (PE)

Etiology:

• Deep Vein Thrombosis (DVT)
• Prolonged immobility
• Blood clots

Epidemiology:

• Median age is 60 years
• Slightly more common in women

Presentation:

• Shortness of breath
• Chest pain
• Syncope

Prognosis:

• High mortality rate
• 25% succumb instantly

Related Pearls: Pulmonary Embolism