Focal form of congenital hyperinsulinism

Focal lesion

 NCK4-37 | Focal form of congenital hyperinsulinism (Frozen section - Giemsa stain)
 NCK4-39 | Focal form of hyperinsulinism (Insulin immunostaining)
 NCK4-40 | Focal form of congenital hyperinsulinism (MIB1/Ki67 immunostaining)
 NCK4-41 | Focal form of congenital hyperinsulinism (HE)

Normal pancreas

 NCK4-38 | Normal pancreas