Unusual timing of a common complication after pulmonary vein isolation

A 57-year-old patient presents with a large mass at the right groin two months after cryoballoon-guided pulmonary vein isolation (PVI) (Fig. 1, left panel). A pseudo-aneurysm of the superficial femoral artery is seen on CT with a small, encapsulated active bleeding region (asterisk) surrounded by a large haematoma (arrow, Fig. 1, right panel). The pseudo-aneurysm of our patient was clinically missed the day after the procedure. Progressive swelling occurred during the first days and weeks after PVI, however, since paucisymptomatic and not worried about his condition, he waited to seek medical advice until the planned follow-up consultation 2 months after PVI. The