Lichenoid keratosis - Revision history

Michael at 18:46, 3 July 2014

2014-07-03T18:46:09Z

← Older revision		Revision as of 18:46, 3 July 2014
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	*[[Basal cell carcinoma]], [[squamous cell carcinoma of the skin]], melanocytic neoplasm.		*[[Basal cell carcinoma]], [[squamous cell carcinoma of the skin]], melanocytic neoplasm.

	==Gross=		==Gross==
	*Red raised scaly-appearing lesion.		*Red raised scaly-appearing lesion.

Michael at 18:46, 3 July 2014

2014-07-03T18:46:00Z

← Older revision		Revision as of 18:46, 3 July 2014
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	Clinical DDx:<ref name=Ref_Derm346>{{Ref Derm\|346}}</ref>		Clinical DDx:<ref name=Ref_Derm346>{{Ref Derm\|346}}</ref>
	*[[Basal cell carcinoma]], [[squamous cell carcinoma of the skin]], melanocytic neoplasm.		*[[Basal cell carcinoma]], [[squamous cell carcinoma of the skin]], melanocytic neoplasm.

			==Gross=
			*Red raised scaly-appearing lesion.

	==Microscopic==		==Microscopic==

Michael: /* Sign out */

2014-07-03T18:44:41Z

Sign out

← Older revision		Revision as of 18:44, 3 July 2014
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	whole lesion to exclude a partially regressed melanocytic lesion is suggested.		whole lesion to exclude a partially regressed melanocytic lesion is suggested.
	</pre>		</pre>

			===Micro===
			The sections show skin with lichenoid inflammation and mild overlying hyperkeratosis with very rare parakeratosis. There is no significant basal atypia. Rare eosinophils are seen. The lymphocytes do not show apparent atypia. Mild reactive spongiosis is seen.

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

Michael at 18:27, 3 July 2014

2014-07-03T18:27:32Z

← Older revision		Revision as of 18:27, 3 July 2014
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	*Lichenoid [[actinic keratosis]] - has atypical hyperchromatic basal cells - esp. at edge of lesion, usu. in the context of [[solar elastosis]].		*Lichenoid [[actinic keratosis]] - has atypical hyperchromatic basal cells - esp. at edge of lesion, usu. in the context of [[solar elastosis]].

	Images:		===Images===
	*[http://www.~~dermpathexpert~~.~~com~~/~~id57.html~~ Lichenoid keratosis (~~dermpathexpert~~.~~com~~)].		*[http://www.dermpedia.org/dermpedia-textbook/lichenoid-keratosis Lichenoid keratosis (dermpedia.org)].

	==Sign out==		==Sign out==

Michael: split out

2014-07-03T18:20:34Z

split out

← Older revision		Revision as of 18:20, 3 July 2014
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	~~#redirect~~ [[~~Non~~-~~malignant_skin_disease#Lichenoid_keratosis~~]]		'''Lichenoid keratosis''' is a [[non-malignant skin disease\|benign skin condition]].

			It is also known as '''lichen planus-like keratosis'''.

			==General==
			*Caucasians - middle age or older.
			*May be a variant of [[seborrheic keratosis]] (with marked inflammation).<ref name=Ref_Derm346>{{Ref Derm\|346}}</ref>

			Clinical DDx:<ref name=Ref_Derm346>{{Ref Derm\|346}}</ref>
			*[[Basal cell carcinoma]], [[squamous cell carcinoma of the skin]], melanocytic neoplasm.

			==Microscopic==
			Features:<ref name=Ref_Derm347>{{Ref Derm\|347}}</ref>
			*Hyperkeratosis.
			*Parakeratosis.
			*Band of inflammatory cells at DE junction (lichenoid inflammation).
			*Dead keratinocytes (Civatte bodies).
			*Dermal melanophages.

			DDx:
			*[[Lichen planus]] - need clinical correlation (mucosal lesions).
			*[[Drug reaction]].
			*[[Cutaneous T-cell lymphoma]].
			*Regressed melanocytic lesion, esp. [[malignant melanoma]].
			*Lichenoid [[actinic keratosis]] - has atypical hyperchromatic basal cells - esp. at edge of lesion, usu. in the context of [[solar elastosis]].

			Images:
			*[http://www.dermpathexpert.com/id57.html Lichenoid keratosis (dermpathexpert.com)].

			==Sign out==
			<pre>
			SKIN LESION, MID-MIDDLE BACK, PUNCH BIOPSY:
			- LICHENOID KERATOSIS.
			</pre>

			===Incompletely excised===
			<pre>
			SKIN LESION, LEFT CHEST, PUNCH BIOPSY:
			- LICHENOID KERATOSIS VERSUS ACTINIC KERATOSIS.
			- NEGATIVE FOR BASAL CELL CARCINOMA.
			- SEE COMMENT.

			COMMENT:
			No eosinophils are apparent. No melanocytic lesion is identified; however, excision of the
			whole lesion to exclude a partially regressed melanocytic lesion is suggested.
			</pre>

			==See also==
			*[[Non-malignant skin disease]].

			==References==
			{{Reflist\|2}}

			[[Category:Non-malignant skin disease]]
	[[Category:Diagnosis]]		[[Category:Diagnosis]]

Michael: +cat.

2011-10-22T06:02:06Z

+cat.

← Older revision		Revision as of 06:02, 22 October 2011
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	#redirect [[Non-malignant_skin_disease#Lichenoid_keratosis]]		#redirect [[Non-malignant_skin_disease#Lichenoid_keratosis]]

			[[Category:Diagnosis]]

Michael: redirect to section

2011-09-12T13:12:26Z

redirect to section

New page

#redirect [[Non-malignant_skin_disease#Lichenoid_keratosis]]