CTICasesIn Situ Pulmonary Artery Thrombosis post Mitral Clip
Imaging findings
Serial CT angiography in a patient with severe pulmonary hypertension and a mitral clip shows rapid, interval development of large, layering in situ pulmonary artery thrombi within one week, corresponding to a period when anticoagulation was suspended.
Key takeaways
In situ pulmonary artery thrombosis is a known complication of severe pulmonary hypertension. Although it typically develops slowly, acute suspension of anticoagulation (such as for a procedure like mitral clip) can trigger rapid development of thrombi within a week, mimicking acute PE.
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