Epidermoid cyst of the testis - Revision history

Michael: /* Microscopic */

2016-03-15T23:42:49Z

Microscopic

← Older revision		Revision as of 23:42, 15 March 2016
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	*Cyst lined by squamous epithelium without significant [[nuclear atypia]].		*Cyst lined by squamous epithelium without significant [[nuclear atypia]].
	*'''No''' adnexal structures.		*'''No''' adnexal structures.
	*'''No''' [[~~intratubular~~ germ cell neoplasia]] in the adjacent seminiferous tubules.		*'''No''' [[germ cell neoplasia in situ]] (GCNIS) in the adjacent seminiferous tubules.
	*'''No''' nuclear atypia.		*'''No''' nuclear atypia.

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	Image: Epidermoid cyst of testis -- intermed mag.jpg \| ECT - intermed. mag.		Image: Epidermoid cyst of testis -- intermed mag.jpg \| ECT - intermed. mag.
	Image: Epidermoid cyst of testis -- high mag.jpg \| ECT - high mag.		Image: Epidermoid cyst of testis -- high mag.jpg \| ECT - high mag.
	</gallery>		</gallery>

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

Michael at 23:42, 15 March 2016

2016-03-15T23:42:16Z

← Older revision		Revision as of 23:42, 15 March 2016
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	\| Caption = Epidermoid cyst of testis. [[H&E stain]]. (WC)		\| Caption = Epidermoid cyst of testis. [[H&E stain]]. (WC)
	\| Synonyms =		\| Synonyms =
	\| Micro = unilocular cyst lined by squamous epithelium without significant nuclear atypia, no [[~~ITGCN~~]]		\| Micro = unilocular cyst lined by squamous epithelium without significant nuclear atypia, no [[GCNIS]] (ITGCN)
	\| Subtypes =		\| Subtypes =
	\| LMDDx = [[teratoma]], [[mixed germ cell tumour]], [[immature teratoma]], [[dermoid cyst]] of testis (subtype of teratoma)		\| LMDDx = [[teratoma]], [[mixed germ cell tumour]], [[immature teratoma]], [[dermoid cyst]] of testis (subtype of teratoma)
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	DDx:		DDx:
	*[[Dermoid cyst]] - adnexal structures, e.g. sweat glands, hair follicules.		*[[Dermoid cyst]] - adnexal structures, e.g. sweat glands, hair follicules.
	*[[Teratoma]] - nuclear atypia, multilocular, ~~mesenchyme~~ elements~~, ITGCN present~~.		*[[Teratoma]] - nuclear atypia, multilocular, mesenchymal elements.
	*[[Mixed germ cell tumour]].		*[[Mixed germ cell tumour]].

Michael: /* See also */

2015-09-07T16:31:38Z

Michael: +images

2015-09-07T16:26:55Z

+images

← Older revision		Revision as of 16:26, 7 September 2015
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	{{ Infobox diagnosis		{{ Infobox diagnosis
	\| Name = {{PAGENAME}}		\| Name = {{PAGENAME}}
	\| Image =		\| Image = Epidermoid cyst of testis -- low mag.jpg
	\| Width =		\| Width =
	\| Caption =		\| Caption = Epidermoid cyst of testis. [[H&E stain]]. (WC)
	\| Synonyms =		\| Synonyms =
	\| Micro = unilocular cyst lined by squamous epithelium without significant nuclear atypia, no [[ITGCN]]		\| Micro = unilocular cyst lined by squamous epithelium without significant nuclear atypia, no [[ITGCN]]
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	*[[Teratoma]] - nuclear atypia, multilocular, mesenchyme elements, ITGCN present.		*[[Teratoma]] - nuclear atypia, multilocular, mesenchyme elements, ITGCN present.
	*[[Mixed germ cell tumour]].		*[[Mixed germ cell tumour]].

			===Images===
			<gallery>
			Image: Epidermoid cyst of testis -- very low mag.jpg \| ECT - very low mag.
			Image: Epidermoid cyst of testis -- low mag.jpg \| ECT - low mag.
			Image: Epidermoid cyst of testis -- intermed mag.jpg \| ECT - intermed. mag.
			Image: Epidermoid cyst of testis -- high mag.jpg \| ECT - high mag.
			</gallery>

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

Michael at 14:20, 7 September 2015

2015-09-07T14:20:49Z

← Older revision		Revision as of 14:20, 7 September 2015
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	\| Prognosis = benign		\| Prognosis = benign
	\| Other =		\| Other =
	\| ClinDDx = other testicular mass - [[germ cell tumours]]		\| ClinDDx = other testicular mass - [[germ cell tumours]], abscess
	\| Tx = excision to exclude a malignant tumour		\| Tx = excision to exclude a malignant tumour/treat symptoms
	}}		}}
	'''Epidermoid cyst of the testis''' is a rare benign lesion of the [[testis]]. It is important to differentiate it from a testicular [[teratoma]].		'''Epidermoid cyst of the testis''' is a rare benign lesion of the [[testis]]. It is important to differentiate it from a testicular [[teratoma]].

Michael at 14:18, 7 September 2015

2015-09-07T14:18:25Z

← Older revision		Revision as of 14:18, 7 September 2015
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	\| IF =		\| IF =
	\| Gross = unilocular cyst containing keratineous material with a laminated appearance		\| Gross = unilocular cyst containing keratineous material with a laminated appearance
	\| Grossing = [[~~orchitectomy~~]]		\| Grossing = [[orchiectomy grossing]]
	\| Site = [[testis]]		\| Site = [[testis]]
	\| Assdx =		\| Assdx =

Michael: tweak

2015-09-07T14:17:34Z

tweak

← Older revision		Revision as of 14:17, 7 September 2015
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			{{ Infobox diagnosis
			\| Name = {{PAGENAME}}
			\| Image =
			\| Width =
			\| Caption =
			\| Synonyms =
			\| Micro = unilocular cyst lined by squamous epithelium without significant nuclear atypia, no [[ITGCN]]
			\| Subtypes =
			\| LMDDx = [[teratoma]], [[mixed germ cell tumour]], [[immature teratoma]], [[dermoid cyst]] of testis (subtype of teratoma)
			\| Stains =
			\| IHC =
			\| EM =
			\| Molecular =
			\| IF =
			\| Gross = unilocular cyst containing keratineous material with a laminated appearance
			\| Grossing = [[orchitectomy]]
			\| Site = [[testis]]
			\| Assdx =
			\| Syndromes =
			\| Clinicalhx =
			\| Signs = testicular mass
			\| Symptoms = typically asymptomatic
			\| Prevalence = rare (1-2% of testicular masses)
			\| Bloodwork = normal (beta-hCG, AFP, LDH)
			\| Rads =
			\| Endoscopy =
			\| Prognosis = benign
			\| Other =
			\| ClinDDx = other testicular mass - [[germ cell tumours]]
			\| Tx = excision to exclude a malignant tumour
			}}
	'''Epidermoid cyst of the testis''' is a rare benign lesion of the [[testis]]. It is important to differentiate it from a testicular [[teratoma]].		'''Epidermoid cyst of the testis''' is a rare benign lesion of the [[testis]]. It is important to differentiate it from a testicular [[teratoma]].

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	*Rare.		*Rare.
	*Benign.		*Benign.
			*1-2% of testicular tumours.<ref name=pmid15486244>{{Cite journal \| last1 = Loya \| first1 = AG. \| last2 = Said \| first2 = JW. \| last3 = Grant \| first3 = EG. \| title = Epidermoid cyst of the testis: radiologic-pathologic correlation. \| journal = Radiographics \| volume = 24 Suppl 1 \| issue = \| pages = S243-6 \| month = Oct \| year = 2004 \| doi = 10.1148/rg.24si035223 \| PMID = 15486244 }}</ref>
			*Typical age: teens to thirties (range: 3-77).<ref name=pmid15486244/>

			Clinical:
			*Asymptomatic mass (typical).<ref name=pmid15486244/>
	==Gross==		==Gross==
	Features:<ref name=pmid22458906>{{Cite journal \| last1 = Ye \| first1 = H. \| last2 = Ulbright \| first2 = TM. \| title = Difficult differential diagnoses in testicular pathology. \| journal = Arch Pathol Lab Med \| volume = 136 \| issue = 4 \| pages = 435-46 \| month = Apr \| year = 2012 \| doi = 10.5858/arpa.2011-0475-RA \| PMID = 22458906 }}</ref>		Features:<ref name=pmid22458906>{{Cite journal \| last1 = Ye \| first1 = H. \| last2 = Ulbright \| first2 = TM. \| title = Difficult differential diagnoses in testicular pathology. \| journal = Arch Pathol Lab Med \| volume = 136 \| issue = 4 \| pages = 435-46 \| month = Apr \| year = 2012 \| doi = 10.5858/arpa.2011-0475-RA \| PMID = 22458906 }}</ref>
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	==References==		==References==
	{{Reflist\|1}}		{{Reflist\|2}}

	[[Category:Diagnosis]]		[[Category:Diagnosis]]
	[[Category:Testis]]		[[Category:Testis]]

Michael: /* Microscopic */

2015-09-07T13:57:30Z

Microscopic

← Older revision		Revision as of 13:57, 7 September 2015
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	==Microscopic==		==Microscopic==
	Features:<ref name=pmid22458906/>		Features:<ref name=pmid22458906/>
	*Cyst lined by squamous epithelium.		*Cyst lined by squamous epithelium without significant [[nuclear atypia]].
	*No significant [[nuclear atypia]].
	*'''No''' adnexal structures.		*'''No''' adnexal structures.
	*'''No''' [[intratubular germ cell neoplasia]] in the adjacent seminiferous tubules.		*'''No''' [[intratubular germ cell neoplasia]] in the adjacent seminiferous tubules.
	*'''No''' nuclear atypia.		*'''No''' nuclear atypia.

			Notes:
			*Surround testis usually within normal limits.
			*Granulomas may be seen in the context of cyst rupture.

	DDx:		DDx:

Michael at 13:48, 7 September 2015

2015-09-07T13:48:52Z

← Older revision		Revision as of 13:48, 7 September 2015
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	==General==		==General==
	*Rare.		*Rare.
			*Benign.

	==Gross==		==Gross==

Michael: /* Microscopic */

2015-09-07T13:36:59Z

Microscopic

← Older revision		Revision as of 13:36, 7 September 2015
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	Features:<ref name=pmid22458906/>		Features:<ref name=pmid22458906/>
	*Cyst lined by squamous epithelium.		*Cyst lined by squamous epithelium.
			*No significant [[nuclear atypia]].
	*'''No''' adnexal structures.		*'''No''' adnexal structures.
	*'''No''' [[intratubular germ cell neoplasia]].		*'''No''' [[intratubular germ cell neoplasia]] in the adjacent seminiferous tubules.
	*'''No''' nuclear atypia.		*'''No''' nuclear atypia.

← Older revision		Revision as of 16:31, 7 September 2015
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	==See also==		==See also==
	*[[Testis]].		*[[Testis]].
			*[[Epidermal inclusion cyst]].

	==References==		==References==