Introduction: Pseudoaneurysm of the maxillary artery is very rare and is at high risk of engaging vital prognosis by
a cataclysmic hemorrhage.
Observation: We report the case of a thirty (30) year old man with a false aneurysm of the maxillary artery that
occurred after a traffic accident with multiple maxillofacial fractures. The circumstance of diagnosis was the
appearance of a pulsating mass in the left parotid region. The diagnosis was based on clinical examination,
ultrasound and angioscan. The treatment was surgical by ligation of the external carotid artery in emergency
with a favorable evolution.
Conclusion: A pseudo arterial aneurysm should be evoked in front of any beating mass after a local trauma and
managed in emergency before its rupture.

False-aneurysm Internal maxillary artery Emergency