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Left: CT scan with contrast showing active bleeding (arrow) and a large retroperitoneal haematoma (X) following vascular access for pulmonary vein isolation in an obese patient (BMI 32 kg/m²). Bleeding source was the right obturator artery which has a variant originated from the external iliac artery. Right: digital subtraction angiography post-embolization (coil). Courtesy of Dr. N. Thieme, Charité Universitätsmedizin, Berlin. BMI, body mass index; CT, computed tomography.
