Nasopharyngeal CA (Pics: HP, LP, p40, and EBV ISH). These can be very tricky as the tumor can be very subtle! Noteworthy feature in this case was the presence of concomitant granulomatous reaction (see PMID 1717637 and 32562216) #PathTwitter#pathology
Even in a bone and soft tissue pathologist sometimes gets oral pathology cases when they involve bone. 30+ male with a posterior maxillary intra-osseous cystic mass. Thoughts? Important differential? Good confirmatory immunostains?
@smlungpathguy@HNPathology@ENT_Path
This last case was a tricky example of an oncocytic variant of salivary duct carcinoma (see HE with AR IHC in same area). Pos IHC: GATA3 and PanK; Some neg IHC: S100 and p63 @HNPathology@golgigriff
Thank you everyone for your thoughts! Excellent differential diagnoses were provided. The case is an example of an acantholytic SCC. P40+ IHC in the soft tissue deposit in the neck lymph node. @smlungpathguy@pathology@EntPathMan
"Neck mass" dissected during glossectomy. What is your DDX of this neck mass? Will share diagnostic IHC and primary tumor pictures tomorrow morning 🙂 #pathology#entpathology
Something pretty for y’all today: Calcifying epithelial odontogenic tumor (aka: pindborg tumor). The apple-green birefringent material is called odontogenic ameloblast-associated protein #SurgPath#ENTPath@ENT_Path