606 results
SMARCB1-deficient sinonasal carcinoma: high grade tumors with varying proportions of basaloid and plasmacytoid/rhabdoid cells; CK+, SMARCB1
Lisa Rooper @LisaRooperMD ... Carcinoma #Pathology #Microscopy
Pathology - GIST 

Iron pill fragments embedded in the ulcerated mucosa overlying a GIST- I guess
Pathology - GIST ... mucosa overlying a GIST ... Lisa Rooper @LisaRooperMD ... #GIST #Iron ... Tumor #Pathology #Microscopy
A morphologic mosaic of NUT carcinoma: monotonous primitive cells, basophilic to clear cytoplasm, abrupt keratinization, prominent
Lisa Rooper @LisaRooperMD ... Pathology #Clinical #Microscopy
Hobnail variant of PTC: micropapillary architecture, dense eosinophilic cytoplasm, hobnail cells with apical nuclei, and marked
Lisa Rooper @LisaRooperMD ... Pathology #Clinical #Microscopy
Olfactory Neuroblastoma Pathology

Morphology and other IHC clinched the diagnosis of olfactory neuroblastoma here. The tumor had
Lisa Rooper @LisaRooperMD ... Neuroblastoma #Pathology #Microscopy
This polymorphous adenocarcinoma (PLGA) is packed with tyrosine crystals- even in perineural invasion! Beautiful example of
Lisa Rooper @LisaRooperMD ... PLGA #Pathology #Microscopy
This macrofollicular thyroid tumor is so very bland... but so perfectly invasive! You can really never
Lisa Rooper @LisaRooperMD ... Invasive #Pathology #Microscopy
Morphologic spectrum of salivary secretory carcinoma: microcystic or papillary-cystic architecture, abundant eosinophilic vacuolated cytoplasm, bubbly luminal
Lisa Rooper @LisaRooperMD ... Pathology #Clinical #Microscopy
Langerhans cell histiocytosis presenting as a solitary jaw cyst. Classic reniform nuclei, prominent eosinophils, S100+, CD1A+,
Lisa Rooper @LisaRooperMD ... Jaw #Pathology #Microscopy
Eosinophilic angiocentric fibrosis: IgG4-related disease of the upper aerodigestive tract. Distinctive concentric (onion-skin) perivascular fibrosis and
Lisa Rooper @LisaRooperMD ... Pathology #Clinical #Microscopy