Intraductal Papillary Mucinous Neoplasm of the Pancreas: An Update

Figure 10

Pancreatic intraepithelial neoplasia (PanIN). (a) PanIN 1A, flat mucinous metaplasia. (b) PanIN 1B, micropapilli formation, no dysplasia. (c) PanIN 2, mild to moderate dysplasia. (d) PanIN 3, severe dysplasia.

(a)

(b)

(c)

(d)