1. A system for assisting diagnoses, the system comprising: a memory which stores a plurality of reference images which have been standardized to have a common scale and position, the reference images being made up of one of pixels and voxels; one or more processors programmed to: receive a query image depicting anatomy of a patient to be diagnosed, the query image being made up of one of pixels and voxels; standardize the query image to the common scale and position, divide the query image and the reference images with a common grid to define corresponding portions of the query image and the reference images, each portion including a plurality of at least one of pixels and voxels, receiving an input selecting a plurality of the corresponding, portions, compute a degree of similarity of each of the selected corresponding portions of the query image with the selected corresponding portions of the reference images, based on the computed degrees of similarity, select relevant ones of the reference images, control a display device to display the query image and the selected relevant ones of the reference images with the selected corresponding portions of the selected relevant ones of the reference images marked to indicate the computed degree of similarity with the selected corresponding portion of the query image.