Patent foramen ovale (PFO) is a flaplike opening between the atrial septa primum and secundum at the location of the fossa ovalis that persists after age 1 year. With increasing evidence being found that PFO is the culprit in paradoxical embolic events. By demonstrating our case report, we want to highlight the relevant aspects of the patent foramen ovale and the association of cryptogenic stroke, its clinical presentation, diagnosis and management.

Keywords: Ischemic Stroke; Cryptogenic Strokes; Interatrial Septal Abnormalities.