Pseudoaneurysm of the Facial Artery after the Injection of Botox

Facial artery pseudoaneurysm is a rare lesion that can be mistaken for an epidermal cyst or other lesions. We present here the case of an iatrogenic pseudoaneurysm of the facial artery branch that was caused by Botox injection. Botox is frequently used for cosmetic and therapeutic purposes in any part of the body. We treated this lesion by performing aneurysmectomy, and the histopathologic analysis showed myxoid degeneration.