Epidermoid cyst of the testis: Difference between revisions

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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 [[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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| 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]].
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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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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]].
===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==
*[[Testis]].
*[[Testis]].
*[[Epidermal inclusion cyst]].


==References==
==References==
Retrieved from "https://librepathology.org/wiki/Epidermoid_cyst_of_the_testis"