Keratoacanthoma - Revision history

Michael: /* Sign out */ +nonbelivers of KA

2020-12-21T18:18:56Z

Sign out: +nonbelivers of KA

← Older revision		Revision as of 18:18, 21 December 2020
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	</pre>		</pre>

	===Micro===		====Micro====
	The sections show hair-bearing skin with a dome-shaped lesion that consists of a cup-shaped epidermal rim, and a large plug of keratin. The lesion is surrounded by a mild patchy lymphoplasmacytic infiltrate. No mitotic activity is apparent. The keratinocytes have minimal atypia and mature to the surface. A granular layer is present. The lesion is completely excised in the plane of section.		The sections show hair-bearing skin with a dome-shaped lesion that consists of a cup-shaped epidermal rim, and a large plug of keratin. The lesion is surrounded by a mild patchy lymphoplasmacytic infiltrate. No mitotic activity is apparent. The keratinocytes have minimal atypia and mature to the surface. A granular layer is present. The lesion is completely excised in the plane of section.

	There is no hypergranulosis. No koilocytes are seen. Solar elastosis is present.		There is no hypergranulosis. No koilocytes are seen. Solar elastosis is present.

			===Non-believers in the diagnosis===
			<pre>
			Skin Lesion, Left Leg, Excision:
			- WELL-DIFFERENTIATED SQUAMOUS CELL CARCINOMA, KERATOACANTHOMA-LIKE,
			margins clear.
			</pre>

			====Micro====
			The sections show hair-bearing skin with a dome-shaped lesion that consists of a cup-shaped epidermal rim, and a large plug of keratin. The lesion has a pushing border and is surrounded by a mild patchy lymphoplasmacytic infiltrate. Mitotic activity is not readily apparent. The keratinocytes have minimal atypia. The lesion is completely excised in the plane of section. No koilocytes are seen. Solar elastosis is present.

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

Michael: /* Micro */ fix typo

2020-12-20T18:04:42Z

Micro: fix typo

← Older revision		Revision as of 18:04, 20 December 2020
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	The sections show hair-bearing skin with a dome-shaped lesion that consists of a cup-shaped epidermal rim, and a large plug of keratin. The lesion is surrounded by a mild patchy lymphoplasmacytic infiltrate. No mitotic activity is apparent. The keratinocytes have minimal atypia and mature to the surface. A granular layer is present. The lesion is completely excised in the plane of section.		The sections show hair-bearing skin with a dome-shaped lesion that consists of a cup-shaped epidermal rim, and a large plug of keratin. The lesion is surrounded by a mild patchy lymphoplasmacytic infiltrate. No mitotic activity is apparent. The keratinocytes have minimal atypia and mature to the surface. A granular layer is present. The lesion is completely excised in the plane of section.

	There is no ~~hypergrlanulosis~~. No koilocytes are seen. Solar elastosis is present.		There is no hypergranulosis. No koilocytes are seen. Solar elastosis is present.

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

Rudolf: more

2013-07-05T20:48:06Z

← Older revision		Revision as of 20:48, 5 July 2013
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	\| Assdx =		\| Assdx =
	\| Syndromes =		\| Syndromes =
			\| Clinicalhx =
	\| Signs = rapid growth		\| Signs = rapid growth
	\| Symptoms =		\| Symptoms =

Michael: more

2013-07-04T15:11:59Z

← Older revision		Revision as of 15:11, 4 July 2013
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	\| Width =		\| Width =
	\| Caption = Keratoacanthoma. [[H&E stain]].		\| Caption = Keratoacanthoma. [[H&E stain]].
	\| Micro =		\| Micro = keratin plug, downward cupping of the epidermis, minimal keratinocyte atypia, +/- keratinocytes with glassy pink cytoplasm
	\| Subtypes =		\| Subtypes =
	\| LMDDx =		\| LMDDx = [[squamous cell carcinoma of the skin\|squamous cell carcinoma]], [[verruca vulgaris]], [[pseudoepitheliomatous hyperplasia]]
	\| Stains =		\| Stains =
	\| IHC =		\| IHC =
Line 17:		Line 17:
	\| Assdx =		\| Assdx =
	\| Syndromes =		\| Syndromes =
	\| Signs =		\| Signs = rapid growth
	\| Symptoms =		\| Symptoms =
	\| Prevalence =		\| Prevalence = uncommon
	\| Bloodwork =		\| Bloodwork =
	\| Rads =		\| Rads =
	\| Endoscopy =		\| Endoscopy =
	\| Prognosis =		\| Prognosis = good
	\| Other =		\| Other =
	\| ClinDDx =		\| ClinDDx = [[squamous cell carcinoma of the skin\|squamous cell carcinoma]]
	}}		}}
	'''Keratoacanthoma''' is clinically worrisome lesion that classically arise on the nose.		'''Keratoacanthoma''' is clinically worrisome lesion that classically arise on the nose.

Michael: more

2013-07-04T12:03:23Z

← Older revision		Revision as of 12:03, 4 July 2013
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			{{ Infobox diagnosis
			\| Name = {{PAGENAME}}
			\| Image = Skin_keratoacanthoma_whole_slide.jpg
			\| Width =
			\| Caption = Keratoacanthoma. [[H&E stain]].
			\| Micro =
			\| Subtypes =
			\| LMDDx =
			\| Stains =
			\| IHC =
			\| EM =
			\| Molecular =
			\| IF =
			\| Gross =
			\| Grossing =
			\| Site =
			\| Assdx =
			\| Syndromes =
			\| Signs =
			\| Symptoms =
			\| Prevalence =
			\| Bloodwork =
			\| Rads =
			\| Endoscopy =
			\| Prognosis =
			\| Other =
			\| ClinDDx =
			}}
	'''Keratoacanthoma''' is clinically worrisome lesion that classically arise on the nose.		'''Keratoacanthoma''' is clinically worrisome lesion that classically arise on the nose.
	It is abbreviated '''KA'''.		It is abbreviated '''KA'''.

Michael: /* Microscopic */ +SO

2013-07-04T12:01:52Z

Microscopic: +SO

← Older revision		Revision as of 12:01, 4 July 2013
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	Image:Keratoacanthoma (3), H&E.jpg \| Keratoacanthoma. (WC/euthman)		Image:Keratoacanthoma (3), H&E.jpg \| Keratoacanthoma. (WC/euthman)
	</gallery>		</gallery>

			==Sign out==
			<pre>
			LESION, LEFT SIDE OF NOSE, EXCISION:
			- KERATOACANTHOMA.
			- SOLAR ELASTOSIS.
			</pre>

			===Micro===
			The sections show hair-bearing skin with a dome-shaped lesion that consists of a cup-shaped epidermal rim, and a large plug of keratin. The lesion is surrounded by a mild patchy lymphoplasmacytic infiltrate. No mitotic activity is apparent. The keratinocytes have minimal atypia and mature to the surface. A granular layer is present. The lesion is completely excised in the plane of section.

			There is no hypergrlanulosis. No koilocytes are seen. Solar elastosis is present.

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

Michael: /* Gross */

2013-07-04T11:51:10Z

Gross

← Older revision		Revision as of 11:51, 4 July 2013
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	==Gross==		==Gross==
	*Raised dome-like lesions with a central defect.		*Raised dome-like lesions with a central crater-like defect.

	<gallery>		<gallery>
	Image:Keratoacanthoma_2.jpg \| Keratoacanthoma. (WC)		Image:Keratoacanthoma_2.jpg \| Keratoacanthoma. (WC)
	</gallery>		</gallery>

	==Microscopic==		==Microscopic==
	Features:<ref name=Ref_Klatt378>{{Ref Klatt\|378}}</ref>		Features:<ref name=Ref_Klatt378>{{Ref Klatt\|378}}</ref>

Michael: /* Image */ more images

2013-07-04T11:46:54Z

Image: more images

← Older revision		Revision as of 11:46, 4 July 2013
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	<gallery>		<gallery>
	Image:Skin_keratoacanthoma_whole_slide.jpg \| Keratoacanthoma. (WC)		Image:Skin_keratoacanthoma_whole_slide.jpg \| Keratoacanthoma. (WC)
			Image:Keratoacanthoma_(1),_H%26E.jpg \| Keratoacanthoma. (WC/euthman)
			Image:Keratoacanthoma (2), H&E.jpg \| Keratoacanthoma. (WC/euthman)
			Image:Keratoacanthoma (3), H&E.jpg \| Keratoacanthoma. (WC/euthman)
	</gallery>		</gallery>

Michael: +gross

2013-07-04T11:44:04Z

+gross

← Older revision		Revision as of 11:44, 4 July 2013
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	*Exophytic lesion, well-circumscribed.		*Exophytic lesion, well-circumscribed.

			==Gross==
			*Raised dome-like lesions with a central defect.

			<gallery>
			Image:Keratoacanthoma_2.jpg \| Keratoacanthoma. (WC)
			</gallery>
	==Microscopic==		==Microscopic==
	Features:<ref name=Ref_Klatt378>{{Ref Klatt\|378}}</ref>		Features:<ref name=Ref_Klatt378>{{Ref Klatt\|378}}</ref>

Michael: redirect

2013-07-04T11:41:24Z

redirect

← Older revision		Revision as of 11:41, 4 July 2013
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	[[Category:Diagnosis]]		[[Category:Diagnosis]]
			[[Category:Dermatopathology]]