An image display apparatus (4) according to the present invention includes a display unit (12) that displays a series of intra-subject images capturing an inside of a subject (1) along time series, and additionally displays a thumbnail corresponding to an intra-subject image selected from the series of intra-subject images; a grouping processor (16b) that creates a thumbnail group including a plurality of thumbnails; an input unit (11) that inputs a thumbnail comment about the thumbnail; and a comment processor (16c) that appends the thumbnail comment to the thumbnail, combines a plurality of thumbnail comments respectively of the plurality of thumbnails included in the thumbnail group whenever the grouping processor (16b) creates the thumbnail group, and creates a group comment of the thumbnail group.
Image display apparatus