Skin Adnexal Tumors: Dermatopathology Unknown Cases

Answers below, so if you want to quiz yourself, DON'T READ THIS until after watching the whole video! This is a recording of 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.

Entities discussed (click timestamp to go to that part of the video):
Thanks to user Logan Costa for typing these out for me!
1) Sebaceous adenoma - 00:00
2) Sebaceoma 7:38
3) Sebaceous carcinoma - 13:16
4) Trichoepithelioma - 21:02
5) Desmoplastic trichoepithelioma - 31:15
6) Microcystic adnexal carcinoma - 43:38
7) Trichoblastoma - 50:09
8) Pilomatrixoma - 57:21
9) Trichilemmoma - 1:06:22
10) Trichofolliculoma - 1:19:06
11) Digital papillary adenocarcinoma - 1:31:03
12) Syringocystadenoma papilliferum - 1:42:55

See also my playlist of all of my videos on adnexal tumor dermpath:

For additional information on this topic, see my Dermatopathology survival guide textbook:

Also check out these papers from the literature:
- 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.

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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[mohammednatiq]

Dear Dr. Gardner, I have been watching your teaching videos. They are simple, clear, learning and amazing. Thank you for your great effort and contribution to the pathology. God bless you.

[hinatariq]

showing slides like this and discussing online is much more useful than presentations.. summary of some important points at power point is a good idea...

[kazumithumargondalia]

I must say u are the best professor with so clear concepts.. after hearing you... I started reading the way u teach... Huge respect.. thanks again...

[KS-oqzd]

Thank you Dr. Gardner! This is priceless! Thank you for what you doing!:)

[helenajenkinson]

Thanks, Dr. Gardner! So wonderful to have such great lectures available online during the pandemic.

[maisamomessodequintal]

Thank you very much for making it public!

[joshuafox]

Thank you Dr. Gardner. Please keep up this excellent teaching!!

[yasirmohammedali]

Hello doctor ... So kind of you to teach us, thank you so much

[mhdqr]

Those long videos are the best
Keep up the great job 👍🏼🙏

[elle-e]

Thank you Dr Gardner for the lectures! Very concise, and I love the jokes, analogies and mini side-stories too. Sending lots of gratitude from Singapore!

[manojkahar]

Excellent Lecture on selected entities of Skin Adnexal Tumors. Very useful practical tips given during the lecture to diagnose these tumors. The teaching during the entire session is absorbing. Too good. Thanks a lot for preparing and delivering such a wonderful lecture.

[mcgama]

Arriving to a place, as a grateful student....it has so chanced I feel much more able to define multiform lesion at molecular toolbar. As I first observed chevron to palisade from your work as lecture within comparison via Univie Linear Fold model template. I humbly thank you for the effort, superb review that I hope will allow me to gain substance as I build dose chemistry. In my recent writing, I have quoted your words and further, my citation as a student to a "giant of medicine.".
Personal from my hand, Mark McGary, Washington State
Member by available log in, "Royal Society of Medicine".

[logancosta]

Entities discussed:


1) Sebaceous adenoma - 00:00
2) Sebaceoma 7:38
3) Sebaceous carcinoma - 13:16
4) Trichoepithelioma - 21:02
5) Desmoplastic trichoepithelioma - 31:15
6) Microcystic adnexal carcinoma - 43:38
7) Trichoblastoma - 50:09
8) Pilomatrixoma - 57:21
9) Trichilemmoma - 1:06:22
10) Trichofolliculoma - 1:19:06
11) Digital papillary adenocarcinoma - 1:31:03
12) Syringocystadenoma papilliferum - 1:42:55

[chiomaede]

Excellent explanation and differentiation of the hair follicle neoplasms, thanks Dr Jerad

[emanmostafa]

Thank you so much Dr. Gardner, this is an amazing session.

[divyamadhala]

Thank you for the brilliant presentation 👍👍👍

[khangle]

It's a very great and beautiful job of you. I have found it very practically helpful. Thank you so much. Please keep doing such an amazing work!

[iacp]

Very informative! Our institution doesn't have that much of adnexal neoplasm slides.

[kazumithumargondalia]

Thank you sir.... This is something I want to gulp down...

[emanolwan]

Thank yoy doctor, you actually simplify dermatopathology