A mapping image display control device includes a lung region extraction unit 11 that extracts a lung region included in a three-dimensional image, a bronchus region extraction unit 12 that extracts a bronchus region included in the lung region, a branching position information acquisition unit 13 that acquires information about a branching position of the bronchus region, a reaching position information estimation unit 14 that estimates reaching position information about a position at which an extended line of a branch included in the bronchus region reaches a surface of the lung region on the basis of the information about the branching position, and a display control unit 15 that generates a mapping image in which the reaching position information is mapped to the surface of the lung region and that causes a display apparatus 3 to display the mapping image.
