Bilateral paramedian thalamo-midbrain infarction showing electroencephalographic alpha activity.

Full Abstract

A 57-year-old man became unresponsive and mute with bilateral ophthalmoplegia and quadriplegia. Magnetic resonance imaging (MRI) showed bilateral infarctions at the ventral midbrain and the dorsomedial nucleus of the thalamus. Serial studies with MR and vertebral angiography disclosed hypoperfusion and spontaneous reperfusion of the bilateral posterior cerebral arteries at their origin from the basilar artery. Electroencephalographically, a posteriorly distributed alpha rhythm was clearly recorded and it was reactive in response to external stimuli. The findings seen in the present patient suggest that the ventral midbrain and medial dorsal thalamus are not necessary to produce posterior electroencephalographic alpha activity.

Author information

Author/s: Yazawa, S (S); Kawasaki, S (S); Kanemaru, A (A); Kuratsuwa, Y (Y); Yabuoshi, R (R); Ohi, T (T);

Affiliation: Department of Neurology, Miyazaki Prefectural Hospital of Nobeoka.

Journal and publication information

Publication Type: Case Reports; Journal Article

Journal: Internal medicine (Tokyo, Japan) (Intern Med), published in Japan. (Language: eng)

Reference: 2001-May; vol 40 (issue 5) : pp 443-8

Dates: Created 2001/06/06; Completed 2001/10/11; Revised 2004/11/17;

PMID: 11393421, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: )

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