Hydrocephalus vs atrophy
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Accurately distinguishing between hydrocephalus and compensatory enlargement of the CSF spaces due brain atrophy can be at times challenging in image interpretation. Features that favour hydrocephalus include:
- dilatation of the temporal horns
- lack of dilatation of perihippocampal fissures 4
- increased frontal horn radius
- acute ventricular angles
- peri-ventricular interstitial oedema from transependymal flow
- intra-ventricular flow void from CSF movement on MR
- widening of the third ventricular recesses: mid sagittal plane
- upward displacement of corpus callosum 3: mid sagittal plane
- depression of the posterior fornix: mid sagittal plane
- decreased mammillo-pontine distance: mid sagittal plane
- narrow callosal angle
- cingulate sulcus sign
-<p>Accurately distinguishing between <a href="/articles/hydrocephalus">hydrocephalus</a> and <a title="Compensatory enlargement of the CSF spaces" href="/articles/hydrocephalus-ex-vacuo">compensatory enlargement of the CSF spaces</a> due brain atrophy can be at times challenging in image interpretation. Features that favour hydrocephalus include:</p><ul>- +<p>Accurately distinguishing between <a href="/articles/hydrocephalus">hydrocephalus</a> and <a href="/articles/hydrocephalus-ex-vacuo">compensatory enlargement of the CSF spaces</a> due brain atrophy can be at times challenging in image interpretation. Features that favour hydrocephalus include:</p><ul>
- +<li>narrow <a title="Callosal angle" href="/articles/callosal-angle">callosal angle</a>
- +</li>
- +<li><a href="/articles/cingulate-sulcus-sign">cingulate sulcus sign</a></li>
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