Figure 1From: Regenerative and fibrotic pathways in canine hepatic portosystemic shunt and portal vein hypoplasia, new models for clinical hepatocyte growth factor treatmentHistological grading of fibrosis. (A) CPSS, Portal area without recognizable portal vein and arteriolar proliferation. Van Gieson stain. (B) PPVH, Markedly enlarged portal area with fibrosis and extensive arteriolar and ductular proliferation. Van Gieson stain.Back to article page