1. A control method for an information terminal including a computer, the control method comprising: controlling the computer to detect whether information indicating a region of interest in a target medical image to be interpreted is input; controlling the computer to receive a plurality of similar medical images similar, with a similarity level equal to or higher than a predetermined level, to the target medical image from a case search system, the received similar medical images including an axial image and a coronal image; and controlling the computer to display the axial image or the coronal image on a display such that the axial image is displayed in a case where the number of regions of interest indicated by the information input to indicate region of interests is one while the coronal image is displayed in a case where the number of regions of interest indicated by the information input to indicate region of interests is two or more or in a case where the information indicating regions of interest is not input.