Microcystic Adnexal Carcinoma vs Desmoplastic Trichoepithelioma (Paisley Tie/Tadpole Pattern)

My adnexal tumor compilation videos:
kikoxp.com/pos...
kikoxp.com/pos...
A complete organized library of all my videos, digital slides, pics, & sample pathology reports is available here: kikoxp.com/pos... (dermpath) & kikoxp.com/pos... (bone/soft tissue sarcoma pathology).
This is an excerpt from a virtual lecture that I delivered via the Zoom app to the dermatology and pathology residency programs at McGill University in Montreal, Quebec, Canada on March 26, 2020.
Link to all of the digital slides on PathPresenter.net:
pathpresenter....
See also my playlist of all of my videos on adnexal tumor dermpath:
• Skin Adnexal Tumors
For additional information on this topic, see my Dermatopathology survival guide textbook:
www.innovative...
Also check out these papers from the literature:
- Fulton E, Kaley JR, Gardner JM. Skin Adnexal Tumors in Plain Language: A Practical Approach for the General Surgical Pathologist. Free PDF: www.archivesof...
- Jedrych J, Leffell D, McNiff JM. Desmoplastic trichoepithelioma with perineural involvement: a series of seven cases. www.ncbi.nlm.n...
- LN Clark, HR Elwood, EE Uhlenhake, BR Smoller, SC Shalin, JM Gardner. Nuclear factor XIIIa staining (clone AC-1A1 mouse monoclonal) is a highly sensitive marker of sebaceous differentiation in normal and neoplastic sebocytes. www.ncbi.nlm.n...
- EE Uhlenhake, LN Clark, BR Smoller, SC Shalin, JM Gardner. Nuclear factor XIIIa staining (clone AC-1A1 mouse monoclonal) is a sensitive and specific marker to discriminate sebaceous proliferations from other cutaneous clear cell neoplasms.
www.ncbi.nlm.n...
This video is geared towards medical students, pathology or dermatology residents, or practicing pathologists or dermatologists. Of course, this video is for educational purposes only and is not formal medical advice or consultation.
Presented by Jerad M. Gardner, MD. Please subscribe to my channel to be notified of new pathology teaching videos.
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[@JMGardnerMD]

My adnexal tumor compilation videos: kikoxp.com/posts/3824 & kikoxp.com/posts/2767. A complete organized library of all my videos, digital slides, pics, & sample pathology reports is available here: kikoxp.com/posts/5084 (dermpath) & kikoxp.com/posts/5083 (bone/soft tissue sarcoma pathology).

[@twayneday911]

This and many other of your videos have been very helpful in preparing for the Mohs board exam. Thank you!

[@tinocasadeitherezo6063]

Great!! It would be very interesting to talk about low grade polymorphous adenocarcinoma!

[@arunjako]

Great content! Can u pls do a guide on diagnosis of panniculitis?

[@JMGardnerMD]

I'll add that to my list! Surely I will get to it at some point.

[@uchennaezenkwa3239]

I noticed solar elastosis in this biopsy on MAC too. Any connection? Does one need to comment on it often in sign outs?

[@JMGardnerMD]

MAC is not related to sun damage to my knowledge. When I notice solar elastosis, it tells me the patient is an adult, probably middle aged or older, and the anatomic site is sun exposed. I don't often mention solar elastosis in the report except for specific times where it tells me something useful (like the umbrella sign or lack thereof in a melanocytic lesion in sun damaged skin. reference: meridian.allenpress.com/aplm/article/143/7/789/10041/A-Practical-Approach-to-the-Diagnosis-of).

[@uchennaezenkwa3239]

@@JMGardnerMD This was helpful. Thank you.