Three PanIN hispathological grades (HE).

Abstract

<p>A:normal pancreas; B:PanIN III, minimal cytological atypia (arrow); C:PanIN III, nuclear polarity disappears, moderate cytological atypia (arrow); D: PanIN III, nuclear atypia hyperplasia, papillary or micro papillary morphology (arrow). Scale bars = 100 μm.</p