Zakrzepowe zapalenie żył głębokich kończyny dolnej u młodego mężczyzny powikłane skrzepliną prawego przedsionka przechodzącą przez otwór owalny do lewego przedsionka i zatorowością płucną

Mobile biatrial thrombus entrapped in a patent foramen ovale is a very rare condition associated with an increased risk of fatal complications due to a high prevalence of paradoxical embolism. Given the limited number of cases reported so far, recommending the most favorable treatment modality is difficult, as it cannot be supported by relevant clinical data. In our paper, we present a case of 28-year-old male patient with deep vein thrombosis of the left lower limb complicated by pulmonary embolism, with mobile thrombus in transit from the right to the left atrium through the patent foramen ovale, successfully treated with surgical embolectomy and closure of interatrial communication.