Kernohan’s Notch: A Forgotten Cause of Hemiplegia—CT Scans Are Useful in This Diagnosis
Hemiparesis ipsilateral to a cerebral lesion can be a false localizing sign. This is due to midline shift of the midbrain resulting in compression of the contralateral pyramidal fibers on the tough dural reflection tentorium cerebelli. This may result in partial or complete damage to these fibers. S...
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doaj-4d4811af1d804fed86418cf4886c6e342020-11-24T20:44:21ZengHindawi LimitedCase Reports in Medicine1687-96271687-96352013-01-01201310.1155/2013/296874296874Kernohan’s Notch: A Forgotten Cause of Hemiplegia—CT Scans Are Useful in This DiagnosisRagesh Panikkath0Deepa Panikkath1Sian Yik Lim2Kenneth Nugent3Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USADepartment of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USADepartment of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USADepartment of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USAHemiparesis ipsilateral to a cerebral lesion can be a false localizing sign. This is due to midline shift of the midbrain resulting in compression of the contralateral pyramidal fibers on the tough dural reflection tentorium cerebelli. This may result in partial or complete damage to these fibers. Since these fibers are destined to cross in the medulla and innervate the opposite side of the body, this causes hemiparesis ipsilateral to the site of cerebral lesion. Computed tomography (CT) scans have not been used to support the diagnosis of this entity until now. We report a 68-year-old woman with a subdural hematoma who developed ipsilateral hemiparesis without any other explanation (Kernohan’s notch). The CT of the head showed evidence of compression of the midbrain contralateral to the hematoma and was useful in the diagnosis. The purpose of this report is to increase the awareness of this presentation and to emphasize the utility of CT scans to support the diagnosis.http://dx.doi.org/10.1155/2013/296874 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ragesh Panikkath Deepa Panikkath Sian Yik Lim Kenneth Nugent |
spellingShingle |
Ragesh Panikkath Deepa Panikkath Sian Yik Lim Kenneth Nugent Kernohan’s Notch: A Forgotten Cause of Hemiplegia—CT Scans Are Useful in This Diagnosis Case Reports in Medicine |
author_facet |
Ragesh Panikkath Deepa Panikkath Sian Yik Lim Kenneth Nugent |
author_sort |
Ragesh Panikkath |
title |
Kernohan’s Notch: A Forgotten Cause of Hemiplegia—CT Scans Are Useful in This Diagnosis |
title_short |
Kernohan’s Notch: A Forgotten Cause of Hemiplegia—CT Scans Are Useful in This Diagnosis |
title_full |
Kernohan’s Notch: A Forgotten Cause of Hemiplegia—CT Scans Are Useful in This Diagnosis |
title_fullStr |
Kernohan’s Notch: A Forgotten Cause of Hemiplegia—CT Scans Are Useful in This Diagnosis |
title_full_unstemmed |
Kernohan’s Notch: A Forgotten Cause of Hemiplegia—CT Scans Are Useful in This Diagnosis |
title_sort |
kernohan’s notch: a forgotten cause of hemiplegia—ct scans are useful in this diagnosis |
publisher |
Hindawi Limited |
series |
Case Reports in Medicine |
issn |
1687-9627 1687-9635 |
publishDate |
2013-01-01 |
description |
Hemiparesis ipsilateral to a cerebral lesion can be a false localizing sign. This is due to midline shift of the midbrain resulting in compression of the contralateral pyramidal fibers on the tough dural reflection tentorium cerebelli. This may result in partial or complete damage to these fibers. Since these fibers are destined to cross in the medulla and innervate the opposite side of the body, this causes hemiparesis ipsilateral to the site of cerebral lesion. Computed tomography (CT) scans have not been used to support the diagnosis of this entity until now. We report a 68-year-old woman with a subdural hematoma who developed ipsilateral hemiparesis without any other explanation (Kernohan’s notch). The CT of the head showed evidence of compression of the midbrain contralateral to the hematoma and was useful in the diagnosis. The purpose of this report is to increase the awareness of this presentation and to emphasize the utility of CT scans to support the diagnosis. |
url |
http://dx.doi.org/10.1155/2013/296874 |
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