Difference between revisions of "Pilar sheath acanthoma"
Jump to navigation
Jump to search
(create) |
(more) |
||
| Line 1: | Line 1: | ||
{{ Infobox diagnosis | |||
| Name = {{PAGENAME}} | |||
| Image = SkinTumors-P8190634.JPG | |||
| Width = | |||
| Caption = Pilar sheath acanthoma. [[H&E stain]]. | |||
| Micro = | |||
| Subtypes = | |||
| LMDDx = [[trichofolliculoma]], [[dilated pore of Winer]], [[epidermal inclusion cyst]] | |||
| Stains = | |||
| IHC = | |||
| EM = | |||
| Molecular = | |||
| IF = | |||
| Gross = raised lesion, central cavitation | |||
| Grossing = | |||
| Site = [[skin]] - classically upper lip | |||
| Assdx = | |||
| Syndromes = | |||
| Clinicalhx = typically middle aged - 50s | |||
| Signs = | |||
| Symptoms = | |||
| Prevalence = rare | |||
| Bloodwork = | |||
| Rads = | |||
| Endoscopy = | |||
| Prognosis = benign | |||
| Other = | |||
| ClinDDx = | |||
}} | |||
'''Pilar sheath acanthoma''' is a rare benign [[skin]] lesion. | '''Pilar sheath acanthoma''' is a rare benign [[skin]] lesion. | ||
| Line 5: | Line 34: | ||
*Considered a [[hamartoma]].<ref name=pmid3557980/> | *Considered a [[hamartoma]].<ref name=pmid3557980/> | ||
*Does not regress like keratoacanthoma. | *Does not regress like keratoacanthoma. | ||
*Typically middle aged individuals.<ref name=pmid718186>{{Cite journal | last1 = Mehregan | first1 = AH. | last2 = Brownstein | first2 = MH. | title = Pilar sheath acanthoma. | journal = Arch Dermatol | volume = 114 | issue = 10 | pages = 1495-7 | month = Oct | year = 1978 | doi = | PMID = 718186 }}</ref> | *Typically middle aged individuals - median age in one series 55 years old, range 46-75 years old.<ref name=pmid718186>{{Cite journal | last1 = Mehregan | first1 = AH. | last2 = Brownstein | first2 = MH. | title = Pilar sheath acanthoma. | journal = Arch Dermatol | volume = 114 | issue = 10 | pages = 1495-7 | month = Oct | year = 1978 | doi = | PMID = 718186 }}</ref> | ||
==Gross== | ==Gross== | ||
| Line 27: | Line 56: | ||
===Images=== | ===Images=== | ||
<gallery> | |||
Image:SkinTumors-P8190634.JPG | PSA. (WC) | |||
</gallery> | |||
www: | www: | ||
*[http://www.dermnet.org.nz/pathology/pilar-sheath-path.html Pilar sheath acanthoma (dermnet.org.nz)]. | *[http://www.dermnet.org.nz/pathology/pilar-sheath-path.html Pilar sheath acanthoma (dermnet.org.nz)]. | ||
Revision as of 11:33, 30 October 2013
| Pilar sheath acanthoma | |
|---|---|
| Diagnosis in short | |
 Pilar sheath acanthoma. H&E stain. | |
| LM DDx | trichofolliculoma, dilated pore of Winer, epidermal inclusion cyst |
| Gross | raised lesion, central cavitation |
| Site | skin - classically upper lip |
|
| |
| Clinical history | typically middle aged - 50s |
| Prevalence | rare |
| Prognosis | benign |
Pilar sheath acanthoma is a rare benign skin lesion.
General
- Rare.[1]
- Considered a hamartoma.[1]
- Does not regress like keratoacanthoma.
- Typically middle aged individuals - median age in one series 55 years old, range 46-75 years old.[2]
Gross
- Raised lesion with a central depression - somewhat similar to keratoacanthoma.
- Classcially upper lip.[2]
DDx:
Microscopic
Features:[2]
- Cystic cavity with:
- Keratineous material.
- Usually extends from surface to deep cutis - like a hair shaft.
- Lining consists of a thickened squamous epithelium.
DDx:
Images
PSA. (WC)
www: