Acute appendicitis - Revision history

Michael: /* Micro */

2025-03-06T14:47:09Z

Micro

← Older revision		Revision as of 14:47, 6 March 2025
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	The sections show appendiceal wall with marked acute transmural inflammation and necrotic appendiceal wall with large collections of neutrophils. Several medium-sized blood vessels are thrombosed. A thick layer of neutrophils cover the serosal aspect.		The sections show appendiceal wall with marked acute transmural inflammation and necrotic appendiceal wall with large collections of neutrophils. Several medium-sized blood vessels are thrombosed. A thick layer of neutrophils cover the serosal aspect.

	=====Alternate - less developed=====		=====Alternate - less developed gangrenous appendicitis=====
	The sections show appendiceal wall with marked acute inflammation and a focally		The sections show appendiceal wall with marked acute inflammation and a focally
	necrotic appendiceal wall with large collections of neutrophils. Intravascular fibrin		necrotic appendiceal wall with large collections of neutrophils. Intravascular fibrin
	is seen in medium-sized blood vessels. Clusters of neutrophils are seen on the serosal		is seen in medium-sized blood vessels. Clusters of neutrophils are seen on the serosal
	aspect.		aspect.

			=====Early appendicitis=====
			The sections show appendiceal wall with focal acute (neutrophilic) inflammation and prominent neutrophil vessel margination. Muscularis propria eosinophils are present. Neutrophils are absent on the serosal aspect.

	==See also==		==See also==

Michael at 16:09, 30 November 2023

2023-11-30T16:09:19Z

← Older revision		Revision as of 16:09, 30 November 2023
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	**Approximately of 40% colectomies for CD (that include an appendix) have involvement of the appendix.<ref name=pmid11956821>{{Cite journal \| last1 = Stangl \| first1 = PC. \| last2 = Herbst \| first2 = F. \| last3 = Birner \| first3 = P. \| last4 = Oberhuber \| first4 = G. \| title = Crohn's disease of the appendix. \| journal = Virchows Arch \| volume = 440 \| issue = 4 \| pages = 397-403 \| month = Apr \| year = 2002 \| doi = 10.1007/s004280100532 \| PMID = 11956821 }}</ref>		**Approximately of 40% colectomies for CD (that include an appendix) have involvement of the appendix.<ref name=pmid11956821>{{Cite journal \| last1 = Stangl \| first1 = PC. \| last2 = Herbst \| first2 = F. \| last3 = Birner \| first3 = P. \| last4 = Oberhuber \| first4 = G. \| title = Crohn's disease of the appendix. \| journal = Virchows Arch \| volume = 440 \| issue = 4 \| pages = 397-403 \| month = Apr \| year = 2002 \| doi = 10.1007/s004280100532 \| PMID = 11956821 }}</ref>
	*[[Crypt cell carcinoma]] (goblet cell carcinoid) - may be subtle.		*[[Crypt cell carcinoma]] (goblet cell carcinoid) - may be subtle.
	*[[Interval appendectomy]] - ~~delayed appendectomy. May~~ have active inflammation - clinical history is essential to differentiate.<ref>{{cite journal \|authors=Malvar G, Peric M, Gonzalez RS \|title=Interval appendicitis shows histological differences from acute appendicitis and may mimic Crohn disease and other forms of granulomatous appendicitis \|journal=Histopathology \|volume=80 \|issue=6 \|pages=965–973 \|date=May 2022 \|pmid=35076982 \|doi=10.1111/his.14621 \|url=}}</ref>		*[[Interval appendectomy]] - may have active inflammation - [[clinical history]] is essential to differentiate.<ref>{{cite journal \|authors=Malvar G, Peric M, Gonzalez RS \|title=Interval appendicitis shows histological differences from acute appendicitis and may mimic Crohn disease and other forms of granulomatous appendicitis \|journal=Histopathology \|volume=80 \|issue=6 \|pages=965–973 \|date=May 2022 \|pmid=35076982 \|doi=10.1111/his.14621 \|url=}}</ref>

	===Images===		===Images===

Michael at 16:08, 30 November 2023

2023-11-30T16:08:31Z

← Older revision		Revision as of 16:08, 30 November 2023
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	**Approximately of 40% colectomies for CD (that include an appendix) have involvement of the appendix.<ref name=pmid11956821>{{Cite journal \| last1 = Stangl \| first1 = PC. \| last2 = Herbst \| first2 = F. \| last3 = Birner \| first3 = P. \| last4 = Oberhuber \| first4 = G. \| title = Crohn's disease of the appendix. \| journal = Virchows Arch \| volume = 440 \| issue = 4 \| pages = 397-403 \| month = Apr \| year = 2002 \| doi = 10.1007/s004280100532 \| PMID = 11956821 }}</ref>		**Approximately of 40% colectomies for CD (that include an appendix) have involvement of the appendix.<ref name=pmid11956821>{{Cite journal \| last1 = Stangl \| first1 = PC. \| last2 = Herbst \| first2 = F. \| last3 = Birner \| first3 = P. \| last4 = Oberhuber \| first4 = G. \| title = Crohn's disease of the appendix. \| journal = Virchows Arch \| volume = 440 \| issue = 4 \| pages = 397-403 \| month = Apr \| year = 2002 \| doi = 10.1007/s004280100532 \| PMID = 11956821 }}</ref>
	*[[Crypt cell carcinoma]] (goblet cell carcinoid) - may be subtle.		*[[Crypt cell carcinoma]] (goblet cell carcinoid) - may be subtle.
			*[[Interval appendectomy]] - delayed appendectomy. May have active inflammation - clinical history is essential to differentiate.<ref>{{cite journal \|authors=Malvar G, Peric M, Gonzalez RS \|title=Interval appendicitis shows histological differences from acute appendicitis and may mimic Crohn disease and other forms of granulomatous appendicitis \|journal=Histopathology \|volume=80 \|issue=6 \|pages=965–973 \|date=May 2022 \|pmid=35076982 \|doi=10.1111/his.14621 \|url=}}</ref>

	===Images===		===Images===

Michael: /* Gangrenous appendicitis */ fix gr.

2021-10-27T14:15:33Z

Gangrenous appendicitis: fix gr.

← Older revision		Revision as of 14:15, 27 October 2021
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	===Micro===		===Micro===
	====Gangrenous appendicitis====		====Gangrenous appendicitis====
	The sections ~~shows~~ appendiceal wall with marked acute transmural inflammation and necrotic appendiceal wall with large collections of neutrophils. Several medium-sized blood vessels are thrombosed. A thick layer of neutrophils cover the serosal aspect.		The sections show appendiceal wall with marked acute transmural inflammation and necrotic appendiceal wall with large collections of neutrophils. Several medium-sized blood vessels are thrombosed. A thick layer of neutrophils cover the serosal aspect.

	=====Alternate - less developed=====		=====Alternate - less developed=====
	The sections ~~shows~~ appendiceal wall with marked acute inflammation and a focally		The sections show appendiceal wall with marked acute inflammation and a focally
	necrotic appendiceal wall with large collections of neutrophils. Intravascular fibrin		necrotic appendiceal wall with large collections of neutrophils. Intravascular fibrin
	is seen in medium-sized blood vessels. Clusters of neutrophils are seen on the serosal		is seen in medium-sized blood vessels. Clusters of neutrophils are seen on the serosal

Michael: wikify

2020-07-09T13:59:56Z

wikify

← Older revision		Revision as of 13:59, 9 July 2020
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	\| Prognosis = good		\| Prognosis = good
	\| Other =		\| Other =
	\| ClinDDx = symptomatic [[Meckel diverticulum]], epiploic appendagitis, [[ectopic pregnancy]], ruptured ovarian cyst, [[ovarian torsion]], pelvic inflammatory disease, benign fecal impaction		\| ClinDDx = symptomatic [[Meckel diverticulum]], [[epiploic appendagitis]], [[ectopic pregnancy]], ruptured ovarian cyst, [[ovarian torsion]], pelvic inflammatory disease, benign fecal impaction
	}}		}}
	'''Acute appendicitis''', abbreviated '''AA''', is an acute inflammation of the [[vermiform appendix]]. It is very common and keeps general surgeons busy.		'''Acute appendicitis''', abbreviated '''AA''', is an acute inflammation of the [[vermiform appendix]]. It is very common and keeps general surgeons busy.

Michael at 14:19, 5 May 2016

2016-05-05T14:19:48Z

← Older revision		Revision as of 14:19, 5 May 2016
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	\| Prognosis = good		\| Prognosis = good
	\| Other =		\| Other =
	\| ClinDDx = symptomatic [[Meckel diverticulum]], epiploic appendagitis, [[ectopic pregnancy]], ruptured ovarian cyst, ovarian torsion, pelvic inflammatory disease		\| ClinDDx = symptomatic [[Meckel diverticulum]], epiploic appendagitis, [[ectopic pregnancy]], ruptured ovarian cyst, [[ovarian torsion]], pelvic inflammatory disease, benign fecal impaction
	}}		}}
	'''Acute appendicitis''', abbreviated '''AA''', is an acute inflammation of the [[vermiform appendix]]. It is very common and keeps general surgeons busy.		'''Acute appendicitis''', abbreviated '''AA''', is an acute inflammation of the [[vermiform appendix]]. It is very common and keeps general surgeons busy.

Michael: /* General */

2016-05-05T14:18:02Z

General

← Older revision		Revision as of 14:18, 5 May 2016
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	**Symptomatic [[Meckel diverticulum]].		**Symptomatic [[Meckel diverticulum]].
	**Epiploic appendagitis.		**Epiploic appendagitis.
			**Benign fecal impaction of the appendix.<ref name=pmid17875592>{{Cite journal \| last1 = Park \| first1 = NH. \| last2 = Park \| first2 = CS. \| last3 = Lee \| first3 = EJ. \| last4 = Kim \| first4 = MS. \| last5 = Ryu \| first5 = JA. \| last6 = Bae \| first6 = JM. \| last7 = Song \| first7 = JS. \| title = Ultrasonographic findings identifying the faecal-impacted appendix: differential findings with acute appendicitis. \| journal = Br J Radiol \| volume = 80 \| issue = 959 \| pages = 872-7 \| month = Nov \| year = 2007 \| doi = 10.1259/bjr/80553348 \| PMID = 17875592 }}</ref>
	*Gynecologic tract:		*Gynecologic tract:
	**[[Ectopic pregnancy]].		**[[Ectopic pregnancy]].

Michael: /* Sign out */

2015-12-13T18:50:59Z

Sign out

← Older revision		Revision as of 18:50, 13 December 2015
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	==Sign out==		==Sign out==
			<pre>
			Vermiform Appendix, Appendectomy:
			- Acute appendicitis with acute periappendicitis.
			</pre>

			===Block letters===
	<pre>		<pre>
	VERMIFORM APPENDIX, APPENDECTOMY:		VERMIFORM APPENDIX, APPENDECTOMY:

Sarah: /* Images */

2015-03-16T10:56:31Z

Images

← Older revision		Revision as of 10:56, 16 March 2015
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	Image:Appendicitis_-_low_mag.jpg \| Appendicitis - low mag. (WC/Nephron)		Image:Appendicitis_-_low_mag.jpg \| Appendicitis - low mag. (WC/Nephron)
	Image:Appendicitis_-_very_high_mag.jpg \| Appendicitis - very high mag. (WC/Nephron)		Image:Appendicitis_-_very_high_mag.jpg \| Appendicitis - very high mag. (WC/Nephron)
	Image:Appendix Appendicitis PA.JPG\|~~thumb\|Appendix~~ Appendicitis~~(SKB)~~		Image:Appendix Appendicitis PA.JPG\|Acute Appendicitis(SKB)
	~~Image:Appendix Appendicitis GranulomatousSuppurating Yersinia-HP PA.JPG\|thumb\|Appendix Appendicitis Granulomatous Suppurating Yersinia~~(SKB)
	</gallery>		</gallery>

Sarah: /* Images */

2015-03-16T10:52:28Z

Images

← Older revision		Revision as of 10:52, 16 March 2015
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	Image:Appendicitis_-_low_mag.jpg \| Appendicitis - low mag. (WC/Nephron)		Image:Appendicitis_-_low_mag.jpg \| Appendicitis - low mag. (WC/Nephron)
	Image:Appendicitis_-_very_high_mag.jpg \| Appendicitis - very high mag. (WC/Nephron)		Image:Appendicitis_-_very_high_mag.jpg \| Appendicitis - very high mag. (WC/Nephron)
	~~Image:Appendix Appendicitis Acute Granulomatous 2 PA.JPG\|thumb\|Appendix Appendicitis Acute Granulomatous (SKB)~~
	~~Image:Appendix Appendicitis Acute Granulomatous PA.JPG\|thumb\|Appendix Appendicitis Acute Granulomatous(SKB)~~
	~~Image:Appendix Appendicitis GranulomatousSuppurating Yersinia-LP PA.JPG\|thumb\|Appendix Appendicitis Granulomatous Suppurating Yersinia(SKB)~~
	Image:Appendix Appendicitis PA.JPG\|thumb\|Appendix Appendicitis(SKB)		Image:Appendix Appendicitis PA.JPG\|thumb\|Appendix Appendicitis(SKB)
	Image:Appendix Appendicitis GranulomatousSuppurating Yersinia-HP PA.JPG\|thumb\|Appendix Appendicitis Granulomatous Suppurating Yersinia(SKB)		Image:Appendix Appendicitis GranulomatousSuppurating Yersinia-HP PA.JPG\|thumb\|Appendix Appendicitis Granulomatous Suppurating Yersinia(SKB)

← Older revision		Revision as of 10:56, 16 March 2015
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	Image:Appendicitis_-_low_mag.jpg \| Appendicitis - low mag. (WC/Nephron)		Image:Appendicitis_-_low_mag.jpg \| Appendicitis - low mag. (WC/Nephron)
	Image:Appendicitis_-_very_high_mag.jpg \| Appendicitis - very high mag. (WC/Nephron)		Image:Appendicitis_-_very_high_mag.jpg \| Appendicitis - very high mag. (WC/Nephron)
	Image:Appendix Appendicitis PA.JPG\|~~thumb\|Appendix~~ Appendicitis~~(SKB)~~		Image:Appendix Appendicitis PA.JPG\|Acute Appendicitis(SKB)
	~~Image:Appendix Appendicitis GranulomatousSuppurating Yersinia-HP PA.JPG\|thumb\|Appendix Appendicitis Granulomatous Suppurating Yersinia~~(SKB)
	</gallery>		</gallery>

← Older revision		Revision as of 10:52, 16 March 2015
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	Image:Appendicitis_-_low_mag.jpg \| Appendicitis - low mag. (WC/Nephron)		Image:Appendicitis_-_low_mag.jpg \| Appendicitis - low mag. (WC/Nephron)
	Image:Appendicitis_-_very_high_mag.jpg \| Appendicitis - very high mag. (WC/Nephron)		Image:Appendicitis_-_very_high_mag.jpg \| Appendicitis - very high mag. (WC/Nephron)
	~~Image:Appendix Appendicitis Acute Granulomatous 2 PA.JPG\|thumb\|Appendix Appendicitis Acute Granulomatous (SKB)~~
	~~Image:Appendix Appendicitis Acute Granulomatous PA.JPG\|thumb\|Appendix Appendicitis Acute Granulomatous(SKB)~~
	~~Image:Appendix Appendicitis GranulomatousSuppurating Yersinia-LP PA.JPG\|thumb\|Appendix Appendicitis Granulomatous Suppurating Yersinia(SKB)~~
	Image:Appendix Appendicitis PA.JPG\|thumb\|Appendix Appendicitis(SKB)		Image:Appendix Appendicitis PA.JPG\|thumb\|Appendix Appendicitis(SKB)
	Image:Appendix Appendicitis GranulomatousSuppurating Yersinia-HP PA.JPG\|thumb\|Appendix Appendicitis Granulomatous Suppurating Yersinia(SKB)		Image:Appendix Appendicitis GranulomatousSuppurating Yersinia-HP PA.JPG\|thumb\|Appendix Appendicitis Granulomatous Suppurating Yersinia(SKB)