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.
