Figure 1.

An intrahepatic cholangiocarcinoma survival nomogram. (To use the nomogram, an individual patient’s value is located on each variable axis, and a line is drawn upward to determine the number of points received for each variable value. The sum of these numbers is located on the Total Points axis, and a line is drawn downward to the survival axes to determine the likelihood of 3- or 5-year survival). CA-199, preoperative level of serum CA 19-9; CEA, preoperative level of serum carcinoembryonic antigen; Direct invasion and local metastasis, direct invasion of adjacent structures and local extrahepatic metastasis; LN metastasis, regional lymph node metastasis; PI, periductal infiltrating type. [Adopted with permission from Wang et al. (24)].