Pilar sheath acanthoma: Difference between revisions
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| Image = SkinTumors-P8190634.JPG | | Image = SkinTumors-P8190634.JPG | ||
| Width = | | Width = | ||
| Caption = | | Caption = Possibly a pilar sheath acanthoma. [[H&E stain]]. | ||
| Micro = | | Micro = cystic cavity with branching - contains keratineous material, usually extends from surface to deep cutis, cyst lining consists of a thickened squamous epithelium | ||
| Subtypes = | | Subtypes = | ||
| LMDDx = [[trichofolliculoma]], [[dilated pore of Winer]], [[epidermal inclusion cyst]] | | LMDDx = [[trichofolliculoma]], [[dilated pore of Winer]], [[epidermal inclusion cyst]] | ||
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==Microscopic== | ==Microscopic== | ||
Features:<ref name=pmid718186/> | Features:<ref name=pmid718186/> | ||
*Cystic cavity with: | *Cystic cavity with branching:<ref name=pmid2697113>{{Cite journal | last1 = Choi | first1 = YS. | last2 = Park | first2 = SH. | last3 = Bang | first3 = D. | title = Pilar sheath acanthoma--report of a case with review of the literature. | journal = Yonsei Med J | volume = 30 | issue = 4 | pages = 392-5 | month = Dec | year = 1989 | doi = | PMID = 2697113 | URL = http://www.eymj.org/Synapse/Data/PDFData/0069YMJ/ymj-30-392.pdf }}</ref> | ||
** | **Contains keratineous material. | ||
**Usually extends from surface to deep cutis - like a hair shaft. | **Usually extends from surface to deep cutis - like a hair shaft. | ||
** | **Cyst lining consists of a thickened squamous epithelium ([[acanthosis]]). | ||
*+/-Mitoses. | |||
DDx: | DDx: | ||
*[[Trichofolliculoma]]. | *[[Trichofolliculoma]] - no branching of cavity, associated with hair & sebaceous glands.<ref name=pmid2697113/> | ||
*[[Dilated pore of Winer]]. | *[[Dilated pore of Winer]] - associated with hair & sebaceous glands.<ref name=pmid2697113/> | ||
*[[Epidermal inclusion cyst]]. | *[[Epidermal inclusion cyst]] - no branching, no accessory structures. | ||
===Images=== | ===Images=== | ||
<gallery> | <gallery> | ||
Image:SkinTumors-P8190634.JPG | | Image:SkinTumors-P8190634.JPG | Possibly a pilar sheath acanthoma. (WC) | ||
</gallery> | </gallery> | ||
www: | www: | ||
*[http://www.dermnet.org.nz/pathology/pilar-sheath-path.html Pilar sheath acanthoma (dermnet.org.nz)]. | *[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3129125/figure/F1/ Pilar sheath acanthoma (nih.gov)].<ref name=pmid21769237>{{Cite journal | last1 = Bavikar | first1 = RR. | last2 = Gaopande | first2 = V. | last3 = Deshmukh | first3 = SD. | title = Postauricular pilar sheath acanthoma. | journal = Int J Trichology | volume = 3 | issue = 1 | pages = 39-40 | month = Jan | year = 2011 | doi = 10.4103/0974-7753.82136 | PMID = 21769237 }}</ref> | ||
*[http://www.dermnet.org.nz/pathology/pilar-sheath-path.html Pilar sheath acanthoma - several images (dermnet.org.nz)]. | |||
*[http://www.eymj.org/Synapse/Data/PDFData/0069YMJ/ymj-30-392.pdf Pilar sheath acanthoma (eymj.org)].<ref name=pmid2697113/> | |||
*[http://www.dermatopathonline.com/pilar%20sheath%20acanthoma2.html Pilar sheath acanthoma - several images (dermatopathonline.com)]. | |||
==See also== | ==See also== | ||
*[[Dermatopathology]]. | *[[Dermatopathology]]. | ||
*[[Skin cysts]]. | *[[Skin cysts]]. | ||
*[[Non-malignant skin disease]]. | |||
==References== | ==References== | ||