Paradoxical bulging of mentalis after botulinum toxin type A injection.

Nanze YuYutong LiuCheng ChenRuijia DongElan YangXiao-Jun Wang

Published in: Journal of cosmetic dermatology (2020)

Injection of BTA in mentalis should cover the whole thickness of the muscle to prevent imbalanced paralysis and paradoxical chin bulging, especially in severe mentalis hyperactivity cases.

Keyphrases

botulinum toxin
ultrasound guided
optical coherence tomography
early onset
drug induced