Prognosis prediction device, prognosis prediction method, and program

A prognosis prediction device comprising:

• a processor;
• and
• a storage medium having computer program instructions stored thereon, wherein the computer program instruction, when executed by the processor, perform processing of:
• predicting, using prognosis prediction information that indicates a relationship between graph tumor information that is information on an image of a tumor represented using an amount defined by a graph theory and a prognosis of a person or an animal having the tumor, a prognosis of an estimation target based on graph tumor information indicating an image of a tumor of the estimation target.