einseitige Hirnatrophie

Dyke Davidoff
Mason syndrome. Elevation of the left petrous ridge along with larger ipsilateral mastoid air cells.
www.eurorad.org • CC by-nc-sa-4.0
Dyke Davidoff
Mason syndrome. Enlarged hyperpneumatized left frontal sinus (white arrow), exvacuuo dilatation of left frontal horn (yellow arrow) and widened diploic space (small white arrows).
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Dyke Davidoff
Mason syndrome. Left cerebral hemiatrophy, dilated ipsilateral occipital horn, ipsilateral midline shift and ipsilateral pneumosinus dilatans (frontal)
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Dyke-Davidoff-Masson
syndrome: case report of fetal unilateral ventriculomegaly and hypoplastic left middle cerebral artery. Two-month-old patient. Contrast enhanced-MRI-angiography. Three-dimensional multiplanar reconstruction image shows normal patency of the carotid arteries and hypoplasia of the left middle cerebral artery (white arrow).
ijponline.biomedcentral.com • CC-by-2.0
Multiple
intracranial calcifications • Sturge-Weber syndrome - Ganzer Fall bei Radiopaedia
Gaillard, F. Sturge-Weber syndrome. Case study, Radiopaedia.org. (accessed on 20 Oct 2022) https://doi.org/10.53347/rID-8199 • CC by-nc-sa 3.0 (modified)
A case of
cerebral hemi atrophy with associated mesial temporal sclerosis in a child.. Coronal T1W Inversion Recovery image shows right cerebral hemiatrophy as evidenced by paucity of white matter, focal dilatation of right lateral ventricle, prominence of cerebral sulci and sylvian fissure.
www.eurorad.org • CC by-nc-sa-4.0
A case of
cerebral hemi atrophy with associated mesial temporal sclerosis in a child.. Axial T1W image shows right cerebral hemiatrophy as evidence by focal dilatation of right lateral ventricle, prominence of cerebral sulci and sylvian fissure.
www.eurorad.org • CC by-nc-sa-4.0
A case of
cerebral hemi atrophy with associated mesial temporal sclerosis in a child.. Coronal T1W Inversion Recovery Image shows atrophy of right parieto-temporal lobe with dilated ipsilateral lateral ventricle.
www.eurorad.org • CC by-nc-sa-4.0
A case of
cerebral hemi atrophy with associated mesial temporal sclerosis in a child.. Oblique coronal T1W Inversion Recovery image shows right cerebral hemiatrophy.
www.eurorad.org • CC by-nc-sa-4.0
A case of
cerebral hemi atrophy with associated mesial temporal sclerosis in a child.. Coronal T1W Inversion Recovery image perpendicular to long axis of hipocampus shows atrophy of right hipocampus and right cerebral hemisphere. Prominent cerebellar sulci are seen in left cerebellar heisphere.
www.eurorad.org • CC by-nc-sa-4.0
Radiopaedia • CC-by-nc-sa 3.0 • de

Cerebral hemiatrophy has a variety of causes, and is generally associated with seizures and hemiplegia. Causes include:

  • congenital
    • idiopathic (primary)
    • intrauterine vascular injury
  • acquired

Radiographic features

The resultant reduction in cerebral volume, if early enough, can lead to changes in the skull, known as Dyke-Davidoff-Masson syndrome.

Changes within the brain parenchyma typically demonstrate:

  • thinning of the grey matter cortex
  • reduced volume of the underlying white matter +/- reduced/abnormal myelination
  • enlargement of the lateral ventricle
  • reduced size of cerebral peduncle (ipsilateral)
  • reduced size of cerebellar hemisphere (contralateral)

Differential diagnosis

A potential pitfall is assuming the 'small' side is the abnormality. Thus hemimegalencephaly or gliomatosis cerebri or widespread cortical dysplasia should be considered.

Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu einseitige Hirnatrophie:
Gliomatosis
cerebri
Wikipedia • CC BY 2.0
Sturge-Weber-Krabbe-Syndrom
 
Wikipedia • CC BY-SA 3.0
Dyke-Davidoff-Masson
syndrome
www.eurorad.org • CC by-nc-sa-4.0
Hemimegalencephalie
 
Wikipedia • CC BY-SA 4.0
Fokale
kortikale Dysplasie
www.eurorad.org • CC by-nc-sa-4.0