Hydrocephalus vs atrophy
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- updated 4 May 2022:
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Hydrocephalus versusvs atrophy
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Distinguishing primary hydrocephalus from atrophy resulting in compensatory enlargement of the CSF spaces asthe cause of ventriculomegaly can be, at times, challenging in image interpretation.
Radiographic features
Features that favour hydrocephalus include:
- dilatation of the temporal horns
- lack of dilatation of parahippocampal fissures 4
- increased frontal horn radius
- acute ventricular angles
- periventricular interstitial oedema from the transependymal flow
- intraventricular flow void from CSF movement on MRI
- widening of the third ventricular recesses: midsagittal plane
- upward displacement of corpus callosum 3: midsagittal plane
- depression of the posterior fornix: midsagittal plane
- decreased mamillopontine distance: midsagittal plane
- narrow callosal angle
- cingulate sulcus sign
-<p>Distinguishing primary <strong>hydrocephalus </strong>from<strong> atrophy </strong>resulting in <a href="/articles/hydrocephalus-ex-vacuo">compensatory enlargement of the CSF spaces</a> as<strong> </strong>the cause of <a href="/articles/ventriculomegaly">ventriculomegaly</a> can be, at times, challenging in image interpretation.</p><h4>Radiographic features</h4><p>Features that favour <a href="/articles/hydrocephalus">hydrocephalus</a> include:</p><ul>- +<p>Distinguishing primary <strong>hydrocephalus </strong>from<strong> atrophy </strong>resulting in <a href="/articles/hydrocephalus-ex-vacuo">compensatory enlargement of the CSF spaces</a> as<strong> </strong>the cause of <a href="/articles/ventriculomegaly-1">ventriculomegaly</a> can be, at times, challenging in image interpretation.</p><h4>Radiographic features</h4><p>Features that favour <a href="/articles/hydrocephalus">hydrocephalus</a> include:</p><ul>
-<li>periventricular interstitial oedema from the <a href="/articles/transependymal-oedema">transependymal flow</a> </li>- +<li>
- +<a title="Transependymal oedema" href="/articles/transependymal-oedema">periventricular interstitial oedema</a> from the <a href="/articles/transependymal-oedema">transependymal flow</a> </li>
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