Figure 15From: Over-expression of glutamine synthase in focal nodular hyperplasia (part 1): Early stages in the formation support the hypothesis of a focal hyper-arterialisation with venous (portal and hepatic) and biliary damageGS and α-SMA staining. A closer view (see Fig. 8, box on the left): upper micrograph (A) shows GS staining, and lower micrograph (B) shows α-SMA staining. Arteries (α-SMA staining) are close to large hepatic veins (GS staining).Back to article page