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Neurocase
Behavior, Cognition and Neuroscience
Volume 18, 2012 - Issue 4
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Original Articles

Ambient echolalia in a patient with germinoma around the bilateral ventriculus lateralis: A case report

Tadashi Suzuki Department of Rehabilitation Medicine, Jikei University Aoto Hospital, Katsushika-ku, Tokyo, Japan; Department of Rehabilitation Medicine, Tokyo Teishin Hospital, Chiyoda-ku, Tokyo, JapanCorrespondence[email protected]
,
Shouichi Itoh Department of Neurosurgery, Tokyo Teishin Hospital, Chiyoda-ku, Tokyo, Japan
,
Noritoshi Arai Department of Neurology, National Center for Global Health and Medicine, Shinzyuku-ku, Tokyo, Japan; Department of Neurology, Tokyo Teishin Hospital, Chiyoda-ku, Tokyo, Japan
,
Masako Kouno Department of Rehabilitation Medicine, Tokyo Teishin Hospital, Chiyoda-ku, Tokyo, Japan
,
Makoto Noguchi Department of Neurosurgery, Tokyo Teishin Hospital, Chiyoda-ku, Tokyo, Japan
,
Masami Takatsu Department of Neurology, Tokyo Teishin Hospital, Chiyoda-ku, Tokyo, Japan; Department of Neurology, Itabashi Chuo Medical Center, Itabashi-ku, Tokyo, Japan
&
Katsuhiko Takeda Department of Neurology, Mita Hospital International University of Health and Welfare, Minato-ku, Tokyo, Japan
 show all
Pages 330-335 | Received 17 May 2010, Accepted 16 Jun 2011, Published online: 25 Nov 2011
 
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Abstract

Ambient echolalia is a rare condition with few reported cases. We report the case of a 20-year-old man with a germinoma around the bilateral ventriculus lateralis who exhibited ambient echolalia. Clinical features included instinctive grasp reaction and compulsive manipulation of tools in his right hand. Speech or mental deterioration has been cited as a cause of ambient echolalia, but neither dementia nor aphasia was present. We propose that ambient echolalia in our case could be interpreted as a disinhibition of pre-existing essentially intact motor subroutines due to damage of the medial frontal lobe.

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