Michael at 21:47, 22 December 2015

2015-12-22T21:47:00Z

← Older revision		Revision as of 21:47, 22 December 2015
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	\| Molecular =		\| Molecular =
	\| IF =		\| IF =
	\| Gross =		\| Gross = dilation of [[blood vessel]]
	\| Grossing =		\| Grossing =
	\| Site = mostly cerebral, [[blood vessel]]s		\| Site = mostly cerebral, [[blood vessel]]s
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	\| Rads =		\| Rads =
	\| Endoscopy =		\| Endoscopy =
	\| Prognosis = dependent on subtype		\| Prognosis = dependent on size, location and subtype
	\| Other =		\| Other =
	\| ClinDDx =		\| ClinDDx =

Michael: /* See also: */

2015-12-22T21:45:53Z

Jensflorian: created - apologies when this is already provided somewhere

2015-12-22T08:39:04Z

created - apologies when this is already provided somewhere

New page

{{ Infobox diagnosis
| Name = {{PAGENAME}}
| Image = Temporal Artery Aneurysm (5221715420).jpg
| Width =
| Caption = Temporal artery aneurysm. [[H&E stain]].
| Micro =
| Subtypes =
| LMDDx =
| Stains =
| IHC =
| EM =
| Molecular =
| IF =
| Gross =
| Grossing =
| Site = mostly cerebral, [[blood vessel]]s
| Assdx =
| Syndromes =
| Clinicalhx = variable
| Signs =
| Symptoms =
| Prevalence =
| Bloodwork =
| Rads =
| Endoscopy =
| Prognosis = dependent on subtype
| Other =
| ClinDDx =
}}
An '''aneurysm''' is an abnormal blood-filled swelling of an artery or vein, resulting from a localized weakness in the wall of the vessel.

==Aortic aneurysm==

Main article: [[Aortic dissection]]

* Dilation < 1.5 times <ref>{{Cite journal | last1 = Johnston | first1 = KW. | last2 = Rutherford | first2 = RB. | last3 = Tilson | first3 = MD. | last4 = Shah | first4 = DM. | last5 = Hollier | first5 = L. | last6 = Stanley | first6 = JC. | title = Suggested standards for reporting on arterial aneurysms. Subcommittee on Reporting Standards for Arterial Aneurysms, Ad Hoc Committee on Reporting Standards, Society for Vascular Surgery and North American Chapter, International Society for Cardiovascular Surgery. | journal = J Vasc Surg | volume = 13 | issue = 3 | pages = 452-8 | month = Mar | year = 1991 | doi = | PMID = 1999868 }}</ref>

<gallery>
File:Aortic_dissection_(1)_Victoria_blue-HE.jpg | Aortic dissection (WC).
File:Mycotic_pulmonary_artery_aneurysm,_ruptured_(4860663580).jpg | Mycotic pulmonar aneurysm (Yale Rosen).
</gallery>

==Coronar (heart) aneurysm==

==Cerebral (intracranial) aneurysm==

===Clinic===
*usu. asymptomatic.
** after rupture: sudden severe headache, nausea, vision impairment, vomiting, loss of consciousness.

===Classification===
*Size:
** Small < 15 mm, large (15 to 25 mm), giant (25 to 50 mm) and super-giant (> 50 mm).
*Shape:
** [[Cerebral saccular aneurysm|Saccular]], Fusiform
*Location:
[[File:Wikipedia_intracranial_aneurysms_-_inferior_view_-_heat_map.jpg | 800px| Distribution of cerebral aneurysms (Nicholas Zaorsky, M.D.)]]

===Micro===
*Berry aneurysm:
**See [[Cerebral saccular aneurysm]].
*Fusiform aneurysm:
**often middle segment of basal arteries.
**enlagement: several centimeters.
**marked atreriosclerosis (histiocytes, hemorrhage, calcification, inflammation).
*Infective aneurysm:
**high mortality (30% in bacterial, 90% in fungal).
**seen in 3% of patients with infectious endocarditis.
**history of drug abuse.
**inflammation of the vessel wall (ectasia).
***usu. from the adventitia inwards.
**Presence of microorganisms.

===Image===
<gallery>
File:Cerebellar_aneurysm.png | Cerebellar aneurysm (Dr. Bollinger / WC)
</gallery>

===See also:===
* [[Cerebral saccular aneurysm]]
* [[Subarachnoid hemorrhage]]

[[Category:Diagnosis]]
[[Category:Neuropathology]]

← Older revision		Revision as of 21:45, 22 December 2015
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	</gallery>		</gallery>

	===See also:===		==See also==
	* [[Cerebral saccular aneurysm]]		* [[Cerebral saccular aneurysm]].
	* [[Subarachnoid hemorrhage]]		* [[Subarachnoid hemorrhage]].



			==References==
			{{Reflist\|1}}

	[[Category:Diagnosis]]		[[Category:Diagnosis]]
	[[Category:Neuropathology]]		[[Category:Neuropathology]]

Aneurysm - Revision history

Michael at 21:47, 22 December 2015

Michael: /* See also: */

Jensflorian: created - apologies when this is already provided somewhere