DESMOPLASTIC TRICHOEPITHELIOMA
This is just another example of desmoplastic trichoepithelioma. This case was presented to serve as a contrast for another case in this conference.
 
Scan power view. The microcysts and larger cysts are found in all levels of the reticular dermis.
A low power view. On of the cystic structures attached to a follicle.
Another low power view. Some of the microcysts contain keratin, but others appear to be empty.
A medium power view. One of the microcysts has an angulated luminal outline. This is sometimes a feature in desmoplastic trichoepitheliomas. The small strands of epithelium are invested by small collagen bundles in a very characteristic manner.

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