Bluesky is collegial and interesting, the way Twitter used to be. Bonus: most people can spell.

#PathSky Intravascular papillae are fun to photograph. We tend to associate them with Dabska tumor (papillary intralymphatic angioendothelioma), but you can see them in other hemangioendotheliomas, angiosarcomas and non-neoplastic lesions.

#PathSky Older adult with a large, prolapsing esophageal mass. An excellent example of a “giant fibrovascular polyp” of the esophagus. Except that essentially 100% of these turn out to be well-differentiated ( or less often dedifferentiated) liposarcomas.

pubmed.ncbi.nlm.nih.gov/28984298/

Congenital melanocytic neoplasms: clinical, histopathological and recent molecular developments - PubMed Congenital melanocytic neoplasms: clinical, histopathological and recent molecular developments

We are happy to share our latest contribution to #PediPath #Pathology on #CMN #CongenitalMelanocytiNevi in Children! #DermPath
We hope you find it useful.

pubmed.ncbi.nlm.nih.gov/39810001/

Great case! Just had a core biopsy of one of these which wasn't an easy case but was happy I figured it out. Sadly it is behaving very aggressively as the MSKCC group shows. Thanks for sharing!

MyoD1

GFAP.

#PathSky 30M, abdominal wall mass. Microcysts, bland round to spindled cells, thick-walled vessels. Positive for desmin, MyoD1, myogenin, and GFAP. Classic findings in EWSR1::PATZ1 sarcoma. Why isn’t this a fusion-positive RMS? Excellent question…https://pubmed.ncbi.nlm.nih.gov/38043789/