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A Case of Action-Induced Clonus that Mimicked Action Tremors and was Associated with Cervical Schwannoma
Clonus is the rhythmic muscle contraction which usually occurs in patients with lesions involving descending motor pathways. Sometimes, rhythmic oscillation of action induced clonus could be confused to action tremor. We report a case of action induced clonus associated with cervical schwannoma whic...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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The Korean Movement Disorder Society
2010
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4027665/ https://www.ncbi.nlm.nih.gov/pubmed/24868382 http://dx.doi.org/10.14802/jmd.10013 |
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author | Sung, Young-Hee Park, Ki-Hyung Lee, Yeung-Bae Park, Hyeon-Mi Shin, Dong-Jin |
author_facet | Sung, Young-Hee Park, Ki-Hyung Lee, Yeung-Bae Park, Hyeon-Mi Shin, Dong-Jin |
author_sort | Sung, Young-Hee |
collection | PubMed |
description | Clonus is the rhythmic muscle contraction which usually occurs in patients with lesions involving descending motor pathways. Sometimes, rhythmic oscillation of action induced clonus could be confused to action tremor. We report a case of action induced clonus associated with cervical schwannoma which was misdiagnosed as essential tremor. The patient had spasticity in all limbs with exaggerated tendon reflexes, and passive stretch-induced clonus. Imaging and histological examinations revealed a schwannoma extending from C2 to C7. The lesion was partially removed by surgery. Even though essential tremor is a common disease, clinician have to do sufficient neurologic examination considering differential diagnosis. |
format | Online Article Text |
id | pubmed-4027665 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | The Korean Movement Disorder Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-40276652014-05-27 A Case of Action-Induced Clonus that Mimicked Action Tremors and was Associated with Cervical Schwannoma Sung, Young-Hee Park, Ki-Hyung Lee, Yeung-Bae Park, Hyeon-Mi Shin, Dong-Jin J Mov Disord Case Report Clonus is the rhythmic muscle contraction which usually occurs in patients with lesions involving descending motor pathways. Sometimes, rhythmic oscillation of action induced clonus could be confused to action tremor. We report a case of action induced clonus associated with cervical schwannoma which was misdiagnosed as essential tremor. The patient had spasticity in all limbs with exaggerated tendon reflexes, and passive stretch-induced clonus. Imaging and histological examinations revealed a schwannoma extending from C2 to C7. The lesion was partially removed by surgery. Even though essential tremor is a common disease, clinician have to do sufficient neurologic examination considering differential diagnosis. The Korean Movement Disorder Society 2010-10 2010-10-30 /pmc/articles/PMC4027665/ /pubmed/24868382 http://dx.doi.org/10.14802/jmd.10013 Text en Copyright © 2010 The Korean Movement Disorder Society This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Case Report Sung, Young-Hee Park, Ki-Hyung Lee, Yeung-Bae Park, Hyeon-Mi Shin, Dong-Jin A Case of Action-Induced Clonus that Mimicked Action Tremors and was Associated with Cervical Schwannoma |
title | A Case of Action-Induced Clonus that Mimicked Action Tremors and was Associated with Cervical Schwannoma |
title_full | A Case of Action-Induced Clonus that Mimicked Action Tremors and was Associated with Cervical Schwannoma |
title_fullStr | A Case of Action-Induced Clonus that Mimicked Action Tremors and was Associated with Cervical Schwannoma |
title_full_unstemmed | A Case of Action-Induced Clonus that Mimicked Action Tremors and was Associated with Cervical Schwannoma |
title_short | A Case of Action-Induced Clonus that Mimicked Action Tremors and was Associated with Cervical Schwannoma |
title_sort | case of action-induced clonus that mimicked action tremors and was associated with cervical schwannoma |
topic | Case Report |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4027665/ https://www.ncbi.nlm.nih.gov/pubmed/24868382 http://dx.doi.org/10.14802/jmd.10013 |
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