The S100 makes me swoon every time. #PathX #PathTwitter #ENTpath #HeadandNeckPath

75 yo M. Big dorsal hand SCC with BONE invasion & multiple lymph node metastases. Why is this SCC acting so aggressively?!? Answer ✅ youtube.com/watch?v=GJQcjA… Digital slides: kikoxp.com/posts/7013 #pathology #pathologists #pathTwitter #dermpath #dermatology #dermtwitter

35 yo M. Skin excision. YOU tell ME the history! (don't want to give away answer too easily!) Answer ✅: youtube.com/watch?v=TYHeQP… WSI digital slide: kikoxp.com/posts/8020. #pathology #pathologists #pathTwitter #dermpath #dermatology #dermatologia #dermtwitter

What is this bubbly cell? (it's NOT a sebocyte!) What is the pink dot in the cytoplasm? Diagnosis? Answers ✅ youtu.be/DqLK6ZvNXTU #pathology #pathologists #pathTwitter #dermpath #dermatology #dermatologia #dermtwitter

#IHCPath Overexpression of CD117 in germ cell neoplasia in situ (GCNIS) versus normal seminiferous tubules. #PathTwitter #GUPath

Classical Hodgkin lymphoma, nodular sclerosis. The large HRS cells are: ➖for CD20 ➕for PAX5 (dim) ➕for CD30 (mb&Golgi staining) CD5 is also ➖ve but highlights T lymphocyte rossetting around the HRS cells There is a mixed inflammatory background + focal sclerosis #PathTwitter

✅Pseudohyperplastic variant of prostatic acinar adenocarcinoma. #IHCPath -> CK5/p63. Some of these glands, including the cystic ones, show intraluminal crystalloids, a very good soft clue for prostate cancer. "Always trust the crystalloids" 🙏🏼 #GUPath #PathTwitter

Happening this weekend! Join us for the ISGyP Spanish-Speaking Gynecological Pathology Course, live online via Zoom! 📅 December 13 🕗 8:00 AM (U.S. Eastern Time) 🔗 isgyp.ca #PathTwitter #GynPath #Gynaepath

UMMC Department of Pathology marks 70 years behind the lens ! #UMMCPATHOLOGY #PATHTWITTER

Alcohol exposure induces endoplasmic reticulum stress and activates the unfolded protein response in the cerebellum and PCs. Research scientist Wen Wen, PhD identified mesencephalic astrocyte-derived neurotrophic factor (MANF) as a critical mediator in this process. #PathTwitter

20 yo woman. Bilateral groin excisions. Answer ✅ youtube.com/watch?v=Zy07nO… WSI digital slides: kikoxp.com/posts/8027 #pathology #pathologists #pathTwitter #dermpath #dermatology #dermatologia #dermtwitter

#breastpath Atypical ductal hyperplasia (w/ Roman-arch–type architecture) #pathTwitter

Announcing a free International Society of Gynecologic Pathologists sponsored live virtual slide session on December 11, 2025 at 12 noon US ET by Dr. Sharma on "Mesenchymal Neoplasms of the distal FGT". Register now @ isgyp.ca #gynpath #gynaepath #PathTwitter

I'm doing a live Dermpedia virtual slide session TODAY 9/18 at 3pm EST for Dermpedia with Dr. Artur Zembowicz. I have some really cool cases to share! Join us: dermpedia.org/programs/sep-1… . #pathology #pathologists #pathTwitter #dermpath #dermatology #dermatologia #dermtwitter

#breastpath Beautiful myxoid fibroadenoma #PathTwitter

30 yo M. Multiple skin papules. Diagnosis? Digital slide🔬 kikoxp.com/posts/1993 Answer ✅ youtube.com/watch?v=o5blch… Similar cases: kikoxp.com/posts/2298 & kikoxp.com/posts/5127 #pathology #pathologists #pathTwitter #dermpath #dermatology #dermatologia #dermtwitter