Fig. 4From: Extrahepatic bile duct hepatocellular carcinoma due to recurrence of hematogenous metastasis 50 months after hepatectomyMicroscopic findings. a Distinct, numerous nodular tumors covered by epithelium that did not expose the bile duct lumen (hematoxylin/eosin (HE)). b These lesions were diagnosed as moderately differentiated HCC (HE). HCC immunostaining for c Hep par 1 and d Glypican 3. The nodular tumors showed e microscopic venous and f perineural invasion (HE)Back to article page