#UsualEpithelialHyperplasia doesn’t get more florid than this.
#Cytokeratin5 positive.
#ER variable.
Note that the apocrine cells next door are CK5 and ER negative.
#BreastPath
#pathology
#BlueskyPath
😉

Help button title slide - DCIS Vs UEH

Collapsing spaces help identify UEH and rigid spaces help identify DCIS

Mixed cell types in UEH Vs Single clonal monotonous cell type DCIS

UEH CK5 positive and ER only some cells positive. DCIS all cells ER positive and all cells CK5 negative.

Distinguishing #UsualEpithelialHyperplasia from #DCIS can be tricky. Hope this helps you 😉🔬
#pathology
#BreastPath