1. A medical image processing apparatus comprising: an image generator configured to generate an inside image based on inside information showing a tissue within a subject acquired in an examination of the subject and, upon receiving incidental information including at least either information on the subject or information on the examination, generate an incidental information image based on the incidental information; and an information processor configured to form the incidental information image in an independent frame from the inside image, execute information processing of the incidental information image as a series of images with the inside image, and output the image.