48,706
edits
m (→Cysts: w) |
|||
(71 intermediate revisions by 2 users not shown) | |||
Line 1: | Line 1: | ||
'''Dermal cysts''' are common in [[dermatopathology]]. Dermatopathologists can diagnose 'em. | '''Dermal cysts''', also '''skin cysts''', are common in [[dermatopathology]]. Dermatopathologists can diagnose 'em. | ||
= | =Overview= | ||
Common types:<ref> | Common types:<ref name=Ref_TN2007_D5>{{Ref TN2007| D5}}</ref> | ||
*[[Epidermal cyst]] (sebaceous cyst) -- most common. | *[[Epidermal cyst]] (sebaceous cyst) -- most common. | ||
*[[pilar cyst|Pilar (trichilemmal) cyst]]. | *[[pilar cyst|Pilar (trichilemmal) cyst]]. | ||
Line 12: | Line 12: | ||
*This may be cystic. It is covered in the ''[[epidermal necrosis]]'' article, which covers [[erythema multiforme]], [[Steven-Johnson syndrome]] and [[toxic epidermal necrolysis]]. | *This may be cystic. It is covered in the ''[[epidermal necrosis]]'' article, which covers [[erythema multiforme]], [[Steven-Johnson syndrome]] and [[toxic epidermal necrolysis]]. | ||
=Common cysts= | |||
==Venous lake== | ==Venous lake== | ||
{{Main|Venous lake}} | |||
==Epidermal inclusion cyst== | ==Epidermal inclusion cyst== | ||
{{Main|Epidermal inclusion cyst}} | |||
==Pilar cyst== | ==Pilar cyst== | ||
*[[AKA]] | *[[AKA]] ''trichilemmal cyst''. | ||
{{Main|Pilar cyst}} | |||
==Dermoid cyst== | ==Dermoid cyst== | ||
Line 99: | Line 39: | ||
*[http://webeye.ophth.uiowa.edu/eyeforum/cases-i/case115/larger/Figure3.jpg Dermoid cyst - low mag. (uiowa.edu)].<ref name=dc_uiowa>Gandhi N, Syed NA, Alen R. Dermoid Cyst. EyeRounds.org. posted July 26, 2010; Available from: [http://www.EyeRounds.org/cases/115-dermoid-cyst.htm http://www.EyeRounds.org/cases/115-dermoid-cyst.htm]. Accessed on: 22 September 2011.</ref> | *[http://webeye.ophth.uiowa.edu/eyeforum/cases-i/case115/larger/Figure3.jpg Dermoid cyst - low mag. (uiowa.edu)].<ref name=dc_uiowa>Gandhi N, Syed NA, Alen R. Dermoid Cyst. EyeRounds.org. posted July 26, 2010; Available from: [http://www.EyeRounds.org/cases/115-dermoid-cyst.htm http://www.EyeRounds.org/cases/115-dermoid-cyst.htm]. Accessed on: 22 September 2011.</ref> | ||
*[http://webeye.ophth.uiowa.edu/eyeforum/cases-i/case115/larger/Figure4.jpg Dermoid cyst - intermed. mag. (uiowa.edu)]. | *[http://webeye.ophth.uiowa.edu/eyeforum/cases-i/case115/larger/Figure4.jpg Dermoid cyst - intermed. mag. (uiowa.edu)]. | ||
===Sign out=== | |||
<pre> | |||
SKIN CYST, RIGHT LATERAL ORBIT, EXCISION: | |||
- DERMOID CYST | |||
- NEGATIVE FOR MALIGNANCY. | |||
</pre> | |||
==Pilonidal cyst== | |||
*[[AKA]] ''pilonidal sinus''. | |||
*[[AKA]] ''pilonidal disease''.<ref>URL: [http://emedicine.medscape.com/article/788127-overview http://emedicine.medscape.com/article/788127-overview]. Accessed on: 10 September 2012.</ref> | |||
{{Main|Pilonidal sinus}} | |||
=Less common= | |||
==Steatocystoma== | |||
{{Main|Steatocystoma}} | |||
==Digital mucous cyst== | ==Digital mucous cyst== | ||
*[[AKA]] ''digital synovial cyst''.<ref name=dermpedia>URL: [http://www.dermpedia.org/dermpedia-textbook/digital-mucous-myxoid-cyst http://www.dermpedia.org/dermpedia-textbook/digital-mucous-myxoid-cyst]. Accessed on: 17 January 2012.</ref> | |||
*[[AKA]] ''digital myxoid pseudocyst''.<ref name=dermpedia/> | |||
===General=== | ===General=== | ||
*Dome-shaped papule. | *Dome-shaped [[papule]]. | ||
===Microscopic=== | ===Microscopic=== | ||
Line 113: | Line 71: | ||
*Mucous = slippery secretion. | *Mucous = slippery secretion. | ||
**Some split hairs over the "u" - "mucus" vs. "mucous".<ref>URL: [http://dictionary.reference.com/browse/mucous http://dictionary.reference.com/browse/mucous]. Accessed on: 8 January 2012.</ref><ref>URL: [http://dictionary.reference.com/browse/mucus http://dictionary.reference.com/browse/mucus]. Accessed on: 8 January 2012.</ref> | **Some split hairs over the "u" - "mucus" vs. "mucous".<ref>URL: [http://dictionary.reference.com/browse/mucous http://dictionary.reference.com/browse/mucous]. Accessed on: 8 January 2012.</ref><ref>URL: [http://dictionary.reference.com/browse/mucus http://dictionary.reference.com/browse/mucus]. Accessed on: 8 January 2012.</ref> | ||
DDx: | |||
*[[Focal cutaneous mucinosis]]. | |||
*[[Ganglion cyst]]. | |||
Images: | Images: | ||
*[http://www.dermpedia.org/files/images/Digital_mucous_cyst_2.jpg Digital mucous cyst (dermpedia.org)].<ref name=dermpedia>URL: [http://www.dermpedia.org/dermpedia-textbook/digital-mucous-myxoid-cyst http://www.dermpedia.org/dermpedia-textbook/digital-mucous-myxoid-cyst]. Accessed on: 17 January 2012.</ref> | *[http://www.dermpedia.org/files/images/Digital_mucous_cyst_2.jpg Digital mucous cyst (dermpedia.org)].<ref name=dermpedia>URL: [http://www.dermpedia.org/dermpedia-textbook/digital-mucous-myxoid-cyst http://www.dermpedia.org/dermpedia-textbook/digital-mucous-myxoid-cyst]. Accessed on: 17 January 2012.</ref> | ||
*[http://www.dermpedia.org/files/images/Untitled89.jpg Digital mucous cyst (dermpedia.org)].<ref>URL: [http://www.dermpedia.org/case/digital-mucous-cyst-ganglion-type http://www.dermpedia.org/case/digital-mucous-cyst-ganglion-type]. Accessed on: 5 July 2013.</ref> | |||
===Sign out=== | |||
<pre> | |||
LESION, LEFT INDEX FINGER, EXCISION: | |||
- DIGITAL MUCOUS CYST. | |||
</pre> | |||
==Apocrine cystadenoma== | |||
===General=== | |||
*Uncommon. | |||
===Microscopic=== | |||
Features:<ref name=Ref_Derm316>{{Ref Derm|316}}</ref> | |||
*Multiloculated. | |||
*Apocrine differentiation: columnar epithelium +/- apical snouts. | |||
*Solid areas of epithelial proliferation. | |||
*Papillary projections into the cyst. | |||
Images: | |||
*[http://alf3.urz.unibas.ch/pathopic/e/getpic-fra.cfm?id=7292 Apocrine cystadenoma (unibas.ch)]. | |||
*[http://www.flickr.com/photos/40764007@N08/6499470691/ Apocrine cystadenoma (flickr.com)]. | |||
=See also= | |||
*[[Non-malignant skin disease]] | *[[Non-malignant skin disease]] | ||
*[[Dermatopathology introduction]] | *[[Dermatopathology introduction]] | ||
=References= | |||
{{reflist|2}} | {{reflist|2}} | ||
[[Category:Non-malignant skin disease]] | [[Category:Non-malignant skin disease]] | ||
[[Category:Dermatopathology]] | [[Category:Dermatopathology]] |
edits