Fig. 7From: Intrabiliary growth type of metastasis from colon cancer, 12 years after curative colectomy: a case reporta: The bile duct was filled with a large amount of mucin (a) and the inside of the tumor-like part was full of necrotic tissue (b). b: The tumor cells along the lumen replaced the normal epithelium of the bile duct. c: The tumor cells formed papillae with fibrovascular cores inside the dilated bile duct, comprising columnar mucin-producing cellsBack to article page