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*[[Basal cell carcinoma]] - usu. mitoses, mucinous stroma and '''no''' papillary-mesenchymal bodies. | *[[Basal cell carcinoma]] - usu. mitoses, mucinous stroma and '''no''' papillary-mesenchymal bodies. | ||
*[[Dermal cylindroma]] - has hyaline stroma. | *[[Dermal cylindroma]] - has hyaline stroma. | ||
*[[Trichofolliculoma]]. | |||
Images: | Images: | ||
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**[http://commons.wikimedia.org/wiki/File:Trichoepithelioma_-_low_mag.jpg Trichoepithelioma - low mag. (WC)]. | **[http://commons.wikimedia.org/wiki/File:Trichoepithelioma_-_low_mag.jpg Trichoepithelioma - low mag. (WC)]. | ||
**[http://commons.wikimedia.org/wiki/File:Trichoepithelioma_-_high_mag.jpg Trichoepithelioma - high mag. (WC)]. | **[http://commons.wikimedia.org/wiki/File:Trichoepithelioma_-_high_mag.jpg Trichoepithelioma - high mag. (WC)]. | ||
==Trichofolliculoma== | |||
===General=== | |||
*Benign. | |||
===Microscopic=== | |||
Features:<ref name=Ref_Derm382>{{Ref Derm|382}}</ref> | |||
*Irregular hair follicle (basilar nest of cells with an acellular hair shaft) with: | |||
**Smaller satellites (follicles) consisting of well-circumscribed basilar cells. | |||
Note: | |||
*Lack artificial clefting between the (basilar) nests and stroma (seen in [[BCC]]). | |||
*Surrounding stroma does not have a basophilic tingle (seen in [[BCC]]). | |||
DDx: | |||
*[[Trichoblastoma]]. | |||
*[[Basal cell carcinoma]]. | |||
Images: | |||
*[http://www.dermatopathonline.com/trichofolliculoma2.html Trichofolliculoma - several images (dermatopathonline.com)]. | |||
*[http://commons.wikimedia.org/wiki/File:SkinTumors-P6190340.JPG Trichofolliculoma (WC)]. (???) | |||
==Apocrine carcinoma of the skin== | ==Apocrine carcinoma of the skin== |
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