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Vol. 55, No. 4, 2006
Issue release date: August 2006
Section title: Historical Note
Eur Neurol 2006;55:230–232

Kernohan’s Notch

Pearce J.M.S.
Emeritus Consultant Neurologist, Department of Neurology, Hull Royal Infirmary, Hull, UK
email Corresponding Author

J.M.S. Pearce

304 Beverley Road

Anlaby, East Yorks HU10 7BG (UK)

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James Collier, in 1904, gave one of the best early accounts of tonsillar herniation as a terminal event caused by raised intracranial pressure. He also observed false localizing signs. Adolf Meyer added to the picture, describing detailed pathology of tentorial and subfalcial herniation, and hemianopia as a false localizing sign. In 1929, Kernohan and Woltman published their important work on ipsilateral hemiplegia accompanying expanding brain lesions. They demonstrated grooving of the crus cerebri on the side opposite to a tumour. Jefferson devised the term ‘the tentorial pressure cone.’ The current debate about the mechanisms is indicated in this short review.

© 2006 S. Karger AG, Basel

Article / Publication Details

First-Page Preview
Abstract of Historical Note

Received: 3/1/2006
Accepted: 3/2/2006
Published online: 8/8/2006
Issue release date: August 2006

Number of Print Pages: 3
Number of Figures: 1
Number of Tables: 0

ISSN: 0014-3022 (Print)
eISSN: 1421-9913 (Online)

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