Figure 1
From: CD133: a potential indicator for differentiation and prognosis of human cholangiocarcinoma
Immunohistochemical staining of CD133 in normal human liver tissues. CD133 expression was found mainly on the apical membrane surface of bile ducts of different sizes in normal liver tissue. (A) Normal small bile ducts, original magnification 200×; (B) Reactive bile ducts, original magnification 200×; (C) Large bile duct, original magnification 400×. In addition, CD133-positive cellular debris in the glandular lumina was observed in some normal bile ducts (B, arrow).