1. A control method for an information terminal including a non-transitory computer-readable recording medium storing a program and a computer, the computer executing the program to perform the control method comprising: controlling the computer to detect input of information indicating a region of interest in a target medical image to be interpreted and displayed within a graphical user interface (GUI); controlling the computer to receive a plurality of medical images similar to the target medical image from a case search system, the received medical images having a similarity level equal to or higher than a predetermined level and including both axial images and coronal images; and controlling the computer to display on a display only the received axial images when a number of regions of interest indicated by the information input within the GUI indicates one, and controlling the computer to display on the display only the received coronal images when the number of regions of interest indicated by the information input within the GUI indicates two or more or when the information indicating regions of interest is not input within the GUI.