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Portal–bridging (double arrow) and perisinusoidal (PS) (arrow) collagen proportionate areas in a 27-year-old male patient with chronic hepatitis B. METAVIR fibrosis stage = F1, total collagen proportionate area = 4.05%, shear wave velocity = 0.97 m/s, portal–bridging proportionate area = 2.15%, PS proportionate area = 1.90% (original magnification 200×).
