Thrombus in transit across a patent foramen ovale in a patient with cerebrovascular accidents, pulmonary embolism, and deep vein thrombosis.

The diagnosis of paradoxical emboli remains elusive in many cases. The causal association between the thrombotic source, the intracardiac shunt, and the final emboli location is seldom demonstrated. We present the case of a 42-year-old woman admitted to the hospital with a third stroke. The presence of a thrombus in transit through a patent foramen ovale (PFO), a deep vein thrombosis (DVT), bilateral pulmonary emboli, and an acute cerebral infarct were concurrently documented.