Differential diagnosis (article structure)
Updates to Article Attributes
Body
was changed:
Differential diagnosis is the sixth subheading in most articles.
This is best structured as a bullet point list with a small description on how the differential condition differs from the main diagnosis.
If the differential is for all modes of imaging it could be written as "general imaging differential considerations include"
An example is
http://radiopaedia.org/articles/subdural-haemorrhage
Where it is listed as
General imaging differential considerations include 1-4:
-
prominent subarachnoid space due to cerebral atrophy or benign enlargement of the subarachnoid space in infancy
- can look similar
- lack of mass effect
- vessels course through the space rather than displaced towards the brain
- CT contrast therefor helps (in adults) by delineating the vessels as well as demonstrating an enhancing 'capsule' of a subdural haematoma / empyema
- ultrasound and MRI are useful in infancy
-
sub-dural empyema
- similar appearance on non-contrast scans
- different clinical context (patients usually unwell and febrile)
- prominent marginal enhancement
- associated cerebral abscess / infarction
-
extra-dural haemorrhage
- sometimes difficult to differentiate if small
- bi-convex in shape (lentiform) rather than crescentic
- limited by sutures
- may displace dural venous sinuses
- usually associated with fractures
-
subdural hygroma
- on CT can be indistinguishable from a chronic subdural haematoma
- exactly CSF density
- no evidence of prior haemorrhage
- motion artefact
The differential can also be elaborated according modality specific differentials (e.g for ultrasound, MRI) where appropriate
The remainder of this article is pending.
-<p><strong>Differential diagnosis</strong> is the sixth subheading in most articles. </p><p>The remainder of this article is pending. </p>- +<p><strong>Differential diagnosis</strong> is the sixth subheading in most articles. </p><p>This is best structured as a bullet point list with a small description on how the differential condition differs from the main diagnosis.</p><p>If the differential is for all modes of imaging it could be written as "general imaging differential considerations include"</p><p>An example is</p><p><a title="Subdural haemorrhage (SDH)" href="/articles/subdural-haemorrhage">http://radiopaedia.org/articles/subdural-haemorrhage</a></p><p>Where it is listed as</p><p>General imaging differential considerations include <sup>1-4</sup>:</p><ul>
- +<li>prominent subarachnoid space due to <a href="/articles/missing">cerebral atrophy</a> or <a href="/articles/benign-enlargement-of-the-subarachnoid-space-in-infancy">benign enlargement of the subarachnoid space in infancy</a><ul>
- +<li>can look similar</li>
- +<li>lack of mass effect</li>
- +<li>vessels course through the space rather than displaced towards the brain</li>
- +<li>CT contrast therefor helps (in adults) by delineating the vessels as well as demonstrating an enhancing 'capsule' of a subdural haematoma / empyema</li>
- +<li>ultrasound and MRI are useful in infancy</li>
- +</ul>
- +</li>
- +<li>
- +<a href="/articles/sub-dural-empyema">sub-dural empyema</a><ul>
- +<li>similar appearance on non-contrast scans</li>
- +<li>different clinical context (patients usually unwell and febrile)</li>
- +<li>prominent marginal enhancement</li>
- +<li>associated cerebral abscess / infarction</li>
- +</ul>
- +</li>
- +<li>
- +<a href="/articles/extradural-haemorrhage">extra-dural haemorrhage</a><ul>
- +<li>sometimes difficult to differentiate if small</li>
- +<li>bi-convex in shape (lentiform) rather than crescentic</li>
- +<li>limited by sutures</li>
- +<li>may displace dural venous sinuses</li>
- +<li>usually associated with fractures</li>
- +</ul>
- +</li>
- +<li>
- +<a href="/articles/subdural-hygroma">subdural hygroma</a><ul>
- +<li>on CT can be indistinguishable from a chronic subdural haematoma</li>
- +<li>exactly CSF density</li>
- +<li>no evidence of prior haemorrhage</li>
- +</ul>
- +</li>
- +<li>motion artefact</li>
- +</ul><p>The differential can also be elaborated according modality specific differentials (e.g for ultrasound, MRI) where appropriate</p><p> </p><p> </p><p>The remainder of this article is pending. </p>
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