CTICasesPulmonary Microemboli with Right Heart Strain
Imaging findings
Chest CT of a young patient presenting with arrest shows peripheral areas of ground glass opacity and clustered nodularity, described as classic for microemboli. The pulmonary artery is noted to be slightly larger, and there is straightening of the interventricular septum with an enlarged right atrium, indicative of right heart strain and elevated right heart pressures.
Key takeaways
Pulmonary microemboli present with a characteristic pattern of peripheral ground glass opacities and clustered nodularity. These can lead to acute right heart strain, which manifests as pulmonary artery enlargement, septal bowing, and right atrial enlargement, and can be a cause of cardiac arrest, particularly in young patients.
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