Saddle pulmonary embolism

Case contributed by Dr Mostafa Mahmoud El-Feky


Chest pain and severe dyspneoa

Patient Data

Age: 60
Gender: Male

CTA Pulmonary angiography

Large intra-luminal filling defect (saddle thrombus) straddles the pulmonary artery bifurcation and extends into the main pulmonary arteries, partially occluding their lumens. The thrombus continues to extend through segmental and subsegmental branches of the upper and lower pulmonary lobar arteries in both lungs, nearly occluding their lumens.

Dilated main pulmonary trunk measuring 3.6 cm in diameter, enlarged right ventricle with RT/LT ventricular diameter ratio >1, in keeping with pulmonary hypertension and right heart strain.

Case Discussion

Imaging features are consistent with saddle pulmonary embolism, which straddles the bifurcation of the pulmonary trunk, extending into the left and right pulmonary arteries. It is associated with pulmonary hypertension and right heart strain.

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Case information

rID: 53182
Published: 11th May 2017
Last edited: 12th May 2017
System: Vascular, Chest
Inclusion in quiz mode: Included

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