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Medical Term:

facial myokymia


Definition: myokymia that appears in the facial muscles, causing narrowing of the palpebral fissure and continuous undulation of the facial skin surface; the latter is referred to as “bag of worms” appearance and is best seen with reflected light; due to intrinsic brainstem lesion, such as a pontine glioma or multiple sclerosis.

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.