A morphologic mosaic of NUT carcinoma: monotonous primitive cells, basophilic to clear cytoplasm, abrupt keratinization, prominent tumor infiltrating neutrophils. Confirm with speckled nuclear positivity for NUT1 IHC, BRD4-NUT fusion or variants. - Dr. Lisa Rooper @LisaRooperMD #NUT #carcinoma #Pathology #Clinical #Microscopy #Mosaic
