Malignant Epidermal Lesions & Mimics 101 (Carcinoma Basics - Dermatopathology Dermatology Pathology)

A recording of a rapid fire intermediate level dermpath session for my awesome dermatology residents. Slide set courtesy of my colleague and friend, Dr. Tammie Ferringer. List of entities discussed (click timestamp to go to that part of video): Clonal Bowen disease (SCC in situ) with perfect eyeliner sign 0:00 Subungual keratoacanthoma 6:32 Inverted follicular keratosis (IFK) 10:37 SCC and CLL 12:30 Regressing keratoacanthoma 17:12 BCC + SK + MIS 20:15 Dermatofibroma with epidermal induction 21:59 Clear cell Bowen disease (SCC in situ) 24:34 Desmoplastic melanoma 26:13 Trick: pink collagen replacing blue solar elastosis 28:44 Warty dyskeratoma 31:04 Sebaceous carcinoma 32:38 BCC infundibulocystic pattern 34:50 Hidroacanthoma simplex/poroma 37:21 BCC adenoid pattern (vs adenoid cystic carcinoma) 41:31 (Primary cutaneous adenoid cystic carcinoma WSI digital slide: https://kikoxp.com/posts/6679) Nevus sebaceus with benign follicular proliferations/induction 46:15 Granular cell tumor with pseudoepitheliomatous hyperplasia mimicking SCC 49:24 Warty SCC arising from condyloma 52:35 AFX 58:20 Subtle Bowen disease +/- Large cell acanthoma 1:01:20 Extramammary Paget disease 1:03:07 BCC micronodular pattern + scar 1:04:29 Chromoblastomycosis 1:05:53 Bowenoid papulosis (HSIL) 1:06:38 Clear cell syringoma 1:08:21 Trichoblastoma 1:08:55 Skin tag-like BCC in Gorlin syndrome (basal cell nevus syndrome) 1:09:39 Dermal Leiomyosarcoma 1:10:20 MIS with pagetoid spread 1:11:52 Cutaneous Lymphadenoma (adamantinoid trichoblastoma) 1:12:23 SCC, Acantholytic pattern 1:13:29 Clonal seborrheic keratosis 1:14:14 Lymphoepithelioma like carcinoma (cutaneous) 1:15:21 Pseudoepitheliomatous hyperplasia at prior biopsy site 1:16:45 Other useful links and videos: Keratoacanthoma video: https://kikoxp.com/posts/4307 Squamous cell carcinoma & actinic keratosis 101: https://kikoxp.com/posts/3771 Dermatofibroma 101 video: https://kikoxp.com/posts/3895 AFX video: https://kikoxp.com/posts/4238 Desmoplastic melanoma vs Spindle cell melanoma 5 minute video: https://kikoxp.com/posts/6046 Dermatofibroma with induction plus true BCC! WSI digital slide: https://kikoxp.com/posts/3745 May Chan's awesome paper on anogenital squamous lesions in @ArchivesPath (free pdf): https://meridian.allenpress.com/aplm/... Check out our 2 special issues of @ArchivesPath focused on essential dermpath for general pathologists (free pdfs): https://meridian.allenpress.com/aplm/... & https://meridian.allenpress.com/aplm/... A complete organized library of all my videos, digital slides, pics, & sample pathology reports is available here: https://kikoxp.com/posts/5084 (dermpath) & https://kikoxp.com/posts/5083 (bone/soft tissue sarcoma pathology). Please check out my Soft Tissue Pathology & Dermatopathology survival guide textbooks: http://bit.ly/2Te2haB ‬ 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. Follow me on: Snapchat: JMGardnerMD Twitter: @JMGardnerMD Instagram: @JMGardnerMD Kiko: https://kikoxp.com/profile/jerad_gard... Facebook:   / jmgardnermd