Procerus sign: Mechanism, clinical usefulness, and controversies

This sign is observed in atypical parkinsonism mainly in Progressive Supranuclear Palsy. The exact mechanism of this sign is not clear but the contraction of the Corrugator Supercilii muscle is the most important factor for the generation of vertical forehead creases. Though the wrinkling of forehea...

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Bibliographic Details

Published in:	Annals of Indian Academy of Neurology
Main Author:	Shakya Bhattacharjee
Format:	Article
Language:	English
Published:	Wolters Kluwer Medknow Publications 2018-01-01
Subjects:	Corrugator supercilii dystonia glabella procerus progressive supranuclear palsy
Online Access:	http://www.annalsofian.org/article.asp?issn=0972-2327;year=2018;volume=21;issue=2;spage=164;epage=165;aulast=Bhattacharjee