A mapping image display control device includes an organ region extraction unit that extracts an organ region from a three-dimensional-image, a tubular-structure-extraction unit that extracts a tubular structure in the organ region, a reaching-position-information-estimation unit that estimates pieces of reaching position information each of a position at which an extended line of a branch in the tubular structure reaches a surface of the organ region, a resection-region-information-acquisition unit that acquires information of a resection region in the organ region, a boundary-identifying-reaching-position-information-determination unit that determines pieces of boundary-identifying reaching position information used to identify a boundary of the resection region from among the pieces of reaching position information based on the information of the resection region, and a display-control unit that causes a mapping image in which the pieces of boundary-identifying reaching position information are mapped to the surface of the organ region to be displayed.
