Subdural hematoma CT: Difference between revisions

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Latest revision as of 17:44, 10 June 2019

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: , Fahimeh Shojaei, M.D.

Overview

CT scan may be helpful in the diagnosis of subdural hematoma. Findings on CT scan diagnostic of subdural hematoma includes crescent shape hyperintense hematoma , which starts to become isointense in comparison to brain gray matter as it ages. It may cross falx cerebri and cause midline shift.

CT scan

CT scan may be helpful in the diagnosis of subdural hematoma. Findings on CT scan diagnostic of subdural hematoma includes:^[1]

Hyperintense in comparison to gray matter
Crescent shape
As the hematoma ages, it starts to become isointense in comparison to brain gray matter
It may cross falx cerebri
It may cause midline shift

Acute subdural hematoma:

https://radiopaedia.org/cases/acute-subdural-haematoma?lang=us

Subacute subdural hematoma:

https://radiopaedia.org/cases/subacute-subdural-haematoma?lang=us

Chronic subdural hematoma:

https://radiopaedia.org/cases/chronic-subdural-haematoma-3?lang=us

References

↑ Carroll, Jason J.; Lavine, Sean D.; Meyers, Philip M. (2017). "Imaging of Subdural Hematomas". Neurosurgery Clinics of North America. 28 (2): 179–203. doi:10.1016/j.nec.2016.11.001. ISSN 1042-3680.

Template:WH Template:WS

[CarrollLavine2017-1] Carroll, Jason J.; Lavine, Sean D.; Meyers, Philip M. (2017). "Imaging of Subdural Hematomas". Neurosurgery Clinics of North America. 28 (2): 179–203. doi:10.1016/j.nec.2016.11.001. ISSN 1042-3680.

[1]

@@ Line 1: / Line 1: @@
 __NOTOC__
 {{Subdural hematoma}}
-{{CMG}}
+{{CMG}} {{AE}}, {{Fs}}
-==CT==
+==Overview==
-Most of the time, subdural hematomas occur around the tops and sides of the [[frontal lobe|frontal]] and [[parietal lobe]]s.They also occur in the posterior [[fossa]], and near the [[falx cerebri]] and [[tentorium]].  Unlike [[epidural hematoma]]s, which cannot expand past the [[skull suture|sutures of the skull]], subdural hematomas can expand along the inside of the skull, creating a convex shape that follows the curve of the brain, stopping only at the dural reflections like the [[tentorium]] and [[falx cerebri]].
+CT scan may be helpful in the diagnosis of subdural hematoma. Findings on CT scan diagnostic of subdural hematoma includes crescent shape hyperintense  hematoma , which starts to become isointense in comparison to brain gray matter as it ages. It may cross falx cerebri and cause midline shift.
-On a [[CT scan]], subdural hematomas are crescent-shaped, with a concave surface away from the skull. Subdural blood can also be seen as a layering density along the [[tentorium cerebelli]]. This can be a chronic, stable process, since the feeding system is low-pressure. In such cases, subtle signs of bleeding such as effacement of [[sulcus (anatomy)|sulci]] or medial displacement of the junction between [[gray matter]] and [[white matter]] may be apparent.  A chronic bleed can be the same density as brain tissue (called isodense to brain), meaning that it will show up on CT scan as the same shade as brain tissue, potentially obscuring the finding.
+==CT scan==
-[http://www.radswiki.net Images courtesy of RadsWiki]
+CT scan may be helpful in the diagnosis of subdural hematoma. Findings on CT scan diagnostic of subdural hematoma includes:<ref name="CarrollLavine2017">{{cite journal|last1=Carroll|first1=Jason J.|last2=Lavine|first2=Sean D.|last3=Meyers|first3=Philip M.|title=Imaging of Subdural Hematomas|journal=Neurosurgery Clinics of North America|volume=28|issue=2|year=2017|pages=179–203|issn=10423680|doi=10.1016/j.nec.2016.11.001}}</ref>
+* Hyperintense in comparison to gray matter
+* Crescent shape
+* As the hematoma ages, it starts to become isointense in comparison to brain gray matter
+* It may cross falx cerebri
+* It may cause midline shift
+=== Acute subdural hematoma: ===
+[[File:Acute subdural CT.jpg|500px|none|thumb|https://radiopaedia.org/cases/acute-subdural-haematoma?lang=us]]
-<gallery>
+=== Subacute subdural hematoma: ===
-Image:Subdural-hematoma-101.jpg|CT: Subdural hematoma
+[[File:Subacude subdural CT.jpg|500px|none|thumb|https://radiopaedia.org/cases/subacute-subdural-haematoma?lang=us]]
-Image:Subdural-hematoma-102.jpg|CT: Subdural hematoma
-</gallery>
+=== Chronic subdural hematoma: ===
-<gallery>
+[[File:Chronic subdural CT.jpg|500px|none|thumb|https://radiopaedia.org/cases/chronic-subdural-haematoma-3?lang=us]]
-Image:Subdural-hematoma-001.jpg|CT: Subdural hematoma
-Image:Subdural-hematoma-002.jpg|CT: Subdural hematoma
-Image:Subdural-hematoma-003.jpg|CT: Subdural hematoma
-</gallery>
 ==References==
 {{Reflist|2}}
-[[Category:Neurosurgery]]
-[[Category:Neurology]]
-[[Category:Emergency medicine]]
-[[Category:Disease]]
-[[Category:Needs overview]]
 {{WH}}
 {{WS}}
+[[Category: (Name of the system)]]