1. A medical information processing apparatus, comprising: a medical information storage unit in which a piece of position information in a model image of a human body, the piece of position information being set in advance, and a piece of medical information are stored so as to be associated with each other; a first display control unit which displays a medical image in a display unit; a specifying unit which specifies a focus position in the medical image displayed in the display unit; an extraction unit which converts a piece of position information of the focus position specified by the specifying unit into a piece of position information in the model image and which extracts a piece of medical information corresponding to the piece of position information in the model image from the medical information storage unit; a second display control unit which displays the piece of medical information extracted by the extraction unit in the display unit as a selection candidate; a selection unit which selects a piece of medical information from the selection candidates displayed in the display unit; and a creation unit which creates an interpretation report by using the piece of medical information selected by the selection unit.