Moumita Bagchi, Neelanjana Paul, Soumitra Ghosh, Suchitra Majumdar, Santa Saha, Arijit Roy and Shyamal K Das
Background: Disorders of movement are important features of Neuro-Wilson’s disease (NWD) and their recognition helps in early diagnosis. We studied the various types of movement disorders including any novel phenomenology found in our cohort of NWD, along with radiological correlations.
Method: A total of 129 consecutive patients of WD (M:F) were examined in Movement Disorders clinic of a tertiary care neurological institute at Kolkata, India. A semi-structured interview and examination determined the various types of movement disorders detected, after proper informed consent. Neuro-imaging (MRI of 1.5 Tesla system) was carried out whenever possible.
Results: The common movement disorders were dystonia (91.8%), Parkinsonism (83.72%), and tremor (53.49%). Others were movement induced focal myoclonus (12.4%), ataxia (11.63%), choreo-athetosis (15.5%). The less frequent movement disorders were akathisia (5.2%) and tics disorder (5.42%) and oromandibular dyskinesias (2.33%). MRI lesions were found to be associated with jaw opening dystonia (caudate), neck dystonia (putamen and pons), truncal dystonia (caudate, globus pallidus and cortical atrophy), appendicular dystonia (caudate and putamen), Parkinsonism (mid-brain), postural tremor (caudate and putamen), tics and akathisia (mid-brain and pons in both).
Conclusion: WD is associated with a variety of common movement disorders such as dystonia, Parkinsonism and tremor. The less frequent movement disorders were focal myoclonus, stereotypes, tics disorders and orofacial dyskinesia . Radiological lesions can be found in association with majority of the movement disorders except in few cases where functional imaging studies may help.
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