1. A medical image display apparatus, comprising: a display unit configured to display a plurality of medical images in which a substantially identical region of a subject is imaged in a first display region on a screen, wherein the medical images are partially overlapped; a detection unit configured to detect a selection operation to select the medical images to be fused from the plurality of medical images; and a generation unit configured to generate a fused image from the medical images selected by the selection operation, wherein the display unit is further configured to display the fused image in a second display region which is different from the first display region on the display unit.