Benign lymphoepithelial lesion - Revision history

Michael: /* General */

2021-12-15T21:18:21Z

General

← Older revision		Revision as of 21:18, 15 December 2021
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	*Usually parotid gland.		*Usually parotid gland.
	*Associated with autoimmune disease, e.g. [[Sjoegren disease]], may not remain benign.<ref name=pmid12058269>{{Cite journal \| last1 = Goto \| first1 = TK. \| last2 = Shimizu \| first2 = M. \| last3 = Kobayashi \| first3 = I. \| last4 = Chikui \| first4 = T. \| last5 = Kanda \| first5 = S. \| last6 = Toshitani \| first6 = K. \| last7 = Shiratsuchi \| first7 = Y. \| last8 = Yoshida \| first8 = K. \| title = Lymphoepithelial lesion of the parotid gland. \| journal = Dentomaxillofac Radiol \| volume = 31 \| issue = 3 \| pages = 198-203 \| month = May \| year = 2002 \| doi = 10.1038/sj/dmfr/4600690 \| PMID = 12058269 }}</ref>		*Associated with autoimmune disease, e.g. [[Sjoegren disease]], may not remain benign.<ref name=pmid12058269>{{Cite journal \| last1 = Goto \| first1 = TK. \| last2 = Shimizu \| first2 = M. \| last3 = Kobayashi \| first3 = I. \| last4 = Chikui \| first4 = T. \| last5 = Kanda \| first5 = S. \| last6 = Toshitani \| first6 = K. \| last7 = Shiratsuchi \| first7 = Y. \| last8 = Yoshida \| first8 = K. \| title = Lymphoepithelial lesion of the parotid gland. \| journal = Dentomaxillofac Radiol \| volume = 31 \| issue = 3 \| pages = 198-203 \| month = May \| year = 2002 \| doi = 10.1038/sj/dmfr/4600690 \| PMID = 12058269 }}</ref>
	*May be seen in the context of [[HIV]].<ref>{{cite journal \|~~vauthors~~=Sekikawa Y, Hongo I \|title=HIV-associated benign lymphoepithelial cysts of the parotid glands confirmed by HIV-1 p24 antigen immunostaining \|journal=BMJ Case Rep \|volume=2017 \|issue= \|pages= \|date=September 2017 \|pmid=28963391 \|pmc=5652621 \|doi=10.1136/bcr-2017-221869 \|url=}}</ref>		*May be seen in the context of [[HIV]].<ref>{{cite journal \|authors=Sekikawa Y, Hongo I \|title=HIV-associated benign lymphoepithelial cysts of the parotid glands confirmed by HIV-1 p24 antigen immunostaining \|journal=BMJ Case Rep \|volume=2017 \|issue= \|pages= \|date=September 2017 \|pmid=28963391 \|pmc=5652621 \|doi=10.1136/bcr-2017-221869 \|url=}}</ref>

	==Microscopic==		==Microscopic==

Michael: /* General */

2021-12-15T21:18:08Z

General

← Older revision		Revision as of 21:18, 15 December 2021
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	*Usually parotid gland.		*Usually parotid gland.
	*Associated with autoimmune disease, e.g. [[Sjoegren disease]], may not remain benign.<ref name=pmid12058269>{{Cite journal \| last1 = Goto \| first1 = TK. \| last2 = Shimizu \| first2 = M. \| last3 = Kobayashi \| first3 = I. \| last4 = Chikui \| first4 = T. \| last5 = Kanda \| first5 = S. \| last6 = Toshitani \| first6 = K. \| last7 = Shiratsuchi \| first7 = Y. \| last8 = Yoshida \| first8 = K. \| title = Lymphoepithelial lesion of the parotid gland. \| journal = Dentomaxillofac Radiol \| volume = 31 \| issue = 3 \| pages = 198-203 \| month = May \| year = 2002 \| doi = 10.1038/sj/dmfr/4600690 \| PMID = 12058269 }}</ref>		*Associated with autoimmune disease, e.g. [[Sjoegren disease]], may not remain benign.<ref name=pmid12058269>{{Cite journal \| last1 = Goto \| first1 = TK. \| last2 = Shimizu \| first2 = M. \| last3 = Kobayashi \| first3 = I. \| last4 = Chikui \| first4 = T. \| last5 = Kanda \| first5 = S. \| last6 = Toshitani \| first6 = K. \| last7 = Shiratsuchi \| first7 = Y. \| last8 = Yoshida \| first8 = K. \| title = Lymphoepithelial lesion of the parotid gland. \| journal = Dentomaxillofac Radiol \| volume = 31 \| issue = 3 \| pages = 198-203 \| month = May \| year = 2002 \| doi = 10.1038/sj/dmfr/4600690 \| PMID = 12058269 }}</ref>
			*May be seen in the context of [[HIV]].<ref>{{cite journal \|vauthors=Sekikawa Y, Hongo I \|title=HIV-associated benign lymphoepithelial cysts of the parotid glands confirmed by HIV-1 p24 antigen immunostaining \|journal=BMJ Case Rep \|volume=2017 \|issue= \|pages= \|date=September 2017 \|pmid=28963391 \|pmc=5652621 \|doi=10.1136/bcr-2017-221869 \|url=}}</ref>

	==Microscopic==		==Microscopic==

Michael: /* Sign out */

2021-12-15T21:12:47Z

Sign out

← Older revision		Revision as of 21:12, 15 December 2021
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	Right Total Parotid Gland, Excision:		Right Total Parotid Gland, Excision:
	- Lymphoepithelial lesion/cyst, benign.		- Lymphoepithelial lesion/cyst, benign.
			- Benign parotid gland.
	- Two lymph nodes, NEGATIVE for malignancy (0/2).		- Two lymph nodes, NEGATIVE for malignancy (0/2).
	</pre>		</pre>

Michael: +SO

2021-12-15T21:09:39Z

+SO

← Older revision		Revision as of 21:09, 15 December 2021
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	*CD20, CD3 -- mixed population.		*CD20, CD3 -- mixed population.
	*Kappa ~ lambda.		*Kappa ~ lambda.

			==Sign out==

			<pre>
			Right Total Parotid Gland, Excision:
			- Lymphoepithelial lesion/cyst, benign.
			- Two lymph nodes, NEGATIVE for malignancy (0/2).
			</pre>

			===Micro===
			The sections show a multiloculated cyst with thin walls containing bland lymphoid cells and unremarkable paucicellular fibrotic tissue. The lymphoid component has germinal centre formation. The cyst lining is predominantly a simple thin epithelium. Minimal cytoplasm is present in the cyst lining. Focally, the epithelium is multilayered; however, pseudo-bilayering is absent. No significant atypia is present. Proliferative activity is not apparent.

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

Michael at 05:22, 27 July 2014

2014-07-27T05:22:56Z

← Older revision		Revision as of 05:22, 27 July 2014
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	'''Benign lymphoepithelial lesion''', also known as '''benign lymphoepithelial cyst''', is a rare benign lesion of the [[head and neck pathology\|head and neck]].		'''Benign lymphoepithelial lesion''', also known as '''benign lymphoepithelial cyst''', is a rare benign lesion of the [[head and neck pathology\|head and neck]].

			It should '''not''' be confused the ''[[lymphoepithelial lesion]]'' found in the GI tract.

	==General==		==General==
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	==See also==		==See also==
	*[[Head and neck pathology]].		*[[Head and neck pathology]].
			*[[Lymphoepithelial lesion]].

	==References==		==References==

Michael: split out

2014-07-27T05:20:49Z

split out

← Older revision		Revision as of 05:20, 27 July 2014
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	~~#redirect~~ [[~~Head_and_neck_pathology#Benign_lymphoepithelial_lesion~~]]		'''Benign lymphoepithelial lesion''', also known as '''benign lymphoepithelial cyst''', is a rare benign lesion of the [[head and neck pathology\|head and neck]].

			==General==
			*Usually parotid gland.
			*Associated with autoimmune disease, e.g. [[Sjoegren disease]], may not remain benign.<ref name=pmid12058269>{{Cite journal \| last1 = Goto \| first1 = TK. \| last2 = Shimizu \| first2 = M. \| last3 = Kobayashi \| first3 = I. \| last4 = Chikui \| first4 = T. \| last5 = Kanda \| first5 = S. \| last6 = Toshitani \| first6 = K. \| last7 = Shiratsuchi \| first7 = Y. \| last8 = Yoshida \| first8 = K. \| title = Lymphoepithelial lesion of the parotid gland. \| journal = Dentomaxillofac Radiol \| volume = 31 \| issue = 3 \| pages = 198-203 \| month = May \| year = 2002 \| doi = 10.1038/sj/dmfr/4600690 \| PMID = 12058269 }}</ref>

			==Microscopic==
			Features:
			*Lymphocytes.
			*Ductal epithelial cells.<ref name=pmid12761623>{{Cite journal \| last1 = Metwaly \| first1 = H. \| last2 = Cheng \| first2 = J. \| last3 = Ida-Yonemochi \| first3 = H. \| last4 = Ohshiro \| first4 = K. \| last5 = Jen \| first5 = KY. \| last6 = Liu \| first6 = AR. \| last7 = Saku \| first7 = T. \| title = Vascular endothelial cell participation in formation of lymphoepithelial lesions (epi-myoepithelial islands) in lymphoepithelial sialadenitis (benign lymphoepithelial lesion). \| journal = Virchows Arch \| volume = 443 \| issue = 1 \| pages = 17-27 \| month = Jul \| year = 2003 \| doi = 10.1007/s00428-003-0824-0 \| PMID = 12761623 }}</ref>

			Note:
			*'''Must''' rule-out (MALT) [[MALT lymphoma\|lymphoma]].

			==IHC==
			*CD20, CD3 -- mixed population.
			*Kappa ~ lambda.

			==See also==
			*[[Head and neck pathology]].

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

			[[Category:Head and neck pathology]]
	[[Category:Diagnosis]]		[[Category:Diagnosis]]

Michael: redirect w/ cat.

2011-11-19T22:15:08Z

redirect w/ cat.

New page

#redirect [[Head_and_neck_pathology#Benign_lymphoepithelial_lesion]]

[[Category:Diagnosis]]