Acute appearance of a carotid pseudoaneurysm during coughing

An adolescent with Behcet's disease presented after an episode of violent coughing with the sudden appearance of a pulsatile mass on his neck (figure 1A). Since childhood, he had been treated with a coumarin derivative (international normalised ratio at admission: 3.2) after cavernous sinus thrombosis and detection of heterozygous mutations in the …