LAUSR

Mirror movements (MMs) refer to involuntary movements of 1 body part that accompany and emulate intentional movements of another. Physiological MMs can be observed during infancy and early childhood and usually disappears by around age 10 years. Although subtle MMs may be present in normal adults, persistence of overt MM into adulthood is usually abnormal and can be seen in a variety of conditions, including congenital MMs, Klippel-Feil syndrome (KFS), Kallmann syndrome, and congenital hemiplegia. Furthermore, overt MMs may develop in neurodegenerative disorders, including Parkinson disease, corticobasal syndrome, and amyotrophic lateral sclerosis. Here, we report a case of post-traumatic functional (psychogenic) MMs in a patient with KFS.