Figure 4From: Playing games with a thrombus: a dangerous match. Paradoxical embolism from a huge central venous cathether thrombus: a case report Transesophageal echocardiography. The injection of bolus of agitated saline in a forearm vein confirmed a small PFO, with spontaneous shunt. Note the small amount of bubbles (less than 5) in the left atrium.Back to article page