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Article
January 1978

Failure of Downward Gaze: The Site and Nature of the Lesion

Author Affiliations

From the Department of Neurology (Dr Halmagyi), and Radiology (Dr Hallinan), Royal Prince Alfred Hospital, and the Department of Pathology (Dr Evans), University of Sydney, Sydney, Australia.

Arch Neurol. 1978;35(1):22-26. doi:10.1001/archneur.1978.00500250026005
Abstract

• We report four patients with paralysis of downward gaze but with intact upward gaze, including one with detailed clinicopathological studies and another with a focal computerized axial tomographic (CT) scan abnormality confirming the presence of bilateral lesions of the dorsomedial red nucleus, including the fasciculus retroflexus. It is suggested that sudden, permanent selective failure of downward gaze accompanied by transient disturbance of consciousness is an embolic syndrome of the posterior thalamosubthalamic or rubral artery.

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