To enable compactness of pixel regions representing possibly micro-calcified tissue in an image to be intuitively recognizable. There is provided a calcification display apparatus comprising: identifying means for identifying pixel regions representing possibly calcified tissue in an image； dilating means for dilating, for each identified pixel region, a corresponding region including that pixel region； grouping means for combining the pixel regions pertaining to the dilated corresponding regions contiguously adjoining one another into one group； and display means for displaying, for each group, at least one of the following: the pixel regions belonging to that group, dilated corresponding regions for the pixel regions, and a border enclosing the pixel regions, with color or brightness according to the number of the pixel regions belonging to that group.
