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Severe resting clonus caused by thyrotoxicosis in a 16‐year‐old girl with hereditary spastic paraparesis: A case report
Author(s) -
Sanger Terence D.
Publication year - 2004
Publication title -
movement disorders
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.352
H-Index - 198
eISSN - 1531-8257
pISSN - 0885-3185
DOI - 10.1002/mds.20015
Subject(s) - clonus , spasticity , medicine , girl , pediatrics , spastic , neurological disorder , movement disorders , physical medicine and rehabilitation , cerebral palsy , central nervous system disease , surgery , psychology , psychiatry , disease , epilepsy , developmental psychology
A 16‐year‐old girl with a history of hereditary spastic paraparesis developed the subacute onset of severe clonus and new upper‐extremity spasticity due to thyrotoxicosis. This case demonstrates the ability of hyperthyroid states to worsen symptoms of spasticity in a child with an underlying spastic disorder. It also demonstrates the importance of investigating for common systemic diseases as a cause of movement disorders even in children with underlying known genetic disorders. © 2004 Movement Disorder Society