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Difference between revisions of "Pilar cyst"
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{{ Infobox diagnosis | {{ Infobox diagnosis | ||
| Name = {{PAGENAME}} | | Name = {{PAGENAME}} | ||
| Image = Trichilemmal_cyst_- | | Image = Trichilemmal_cyst_-_very_high_mag.jpg | ||
| Width = | | Width = | ||
| Caption = Pilar cyst. [[H&E stain]]. | | Caption = Pilar cyst. [[H&E stain]]. | ||
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==General== | ==General== | ||
*Very common. | *Very common. | ||
*Benign. | *Benign.‡ | ||
*The clinical history for these typically says ''[[sebaceous cyst]]''. | *The clinical history for these typically says ''[[sebaceous cyst]]''. | ||
Note: | |||
*‡A super rare malignant counter part is described; approximately 40 cases are reported in the english literature.<ref name=pmid22470211>{{Cite journal | last1 = Goyal | first1 = S. | last2 = Jain | first2 = BB. | last3 = Jana | first3 = S. | last4 = Bhattacharya | first4 = SK. | title = Malignant proliferating trichilemmal tumor. | journal = Indian J Dermatol | volume = 57 | issue = 1 | pages = 50-2 | month = Jan | year = 2012 | doi = 10.4103/0019-5154.92679 | PMID = 22470211 }}</ref> | |||
==Gross== | ==Gross== | ||
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DDx: | DDx: | ||
*[[Epidermal cyst]] - has a granular layer. | *[[Epidermal cyst]] - has a granular layer. | ||
*[[Squamous cell carcinoma of the skin|Squamous cell carcinoma]] arising from a pilar cyst. | |||
===Images=== | ===Images=== | ||
<gallery> | <gallery> | ||
Image:Trichilemmal_cyst_-_intermed_mag.jpg | Trichilemmal cyst - intermed. mag. (WC) | Image:Trichilemmal_cyst_-_intermed_mag.jpg | Trichilemmal cyst - intermed. mag. (WC) | ||
Image:Trichilemmal_cyst_-_high_mag.jpg | Trichilemmal cyst - high mag. (WC) | |||
Image:Trichilemmal_cyst_-_very_high_mag.jpg | Trichilemmal cyst - very high mag. (WC) | Image:Trichilemmal_cyst_-_very_high_mag.jpg | Trichilemmal cyst - very high mag. (WC) | ||
</gallery> | </gallery> | ||
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*[http://dermatlas.med.jhmi.edu/derm/indexDisplay.cfm?ImageID=69966366 Trichilemmal cyst (dermatlas.med.jhmi.edu)]. | *[http://dermatlas.med.jhmi.edu/derm/indexDisplay.cfm?ImageID=69966366 Trichilemmal cyst (dermatlas.med.jhmi.edu)]. | ||
*[http://www.flickr.com/photos/40764007@N08/3881846034/in/photostream/ Trichilemmal cyst (flickr.com)]. | *[http://www.flickr.com/photos/40764007@N08/3881846034/in/photostream/ Trichilemmal cyst (flickr.com)]. | ||
==Sign out== | ==Sign out== | ||
<pre> | |||
Scalp (Cyst), Excision: | |||
- Benign trichilemmal cyst (pilar cyst). | |||
</pre> | |||
===Block letters=== | |||
<pre> | <pre> | ||
SCALP (CYST), EXCISION: | SCALP (CYST), EXCISION: | ||