1. A method for utilizing mammogram images for verification, comprising: obtaining one or more mammogram image of a patient; performing one or more of the following on the one or more mammogram image: a) analyze nipple, skin line, and pectoralis muscle for assessment of size and shape of a breast or pair of breasts of the patient and generating a first analysis result; b) analyze breast density and glandular pattern of the breast or pair of breasts of the patient and generating a second analysis result; c) analyze at least one breast landmark and corresponding coordinate location of the at least one landmark and generating a third analysis result; or d) analyze a region of greatest breast tissue density of the breast or pair of breasts of the patient and generating a fourth analysis result; comparing one or more of the following to yield a comparison: the first analysis result, the second analysis result; the third analysis result or the fourth analysis result with one or more previous mammogram image, wherein the one or more previous mammogram is identified as potentially belonging to the patient using an identification not related to content of a mammogram image, wherein the identification not related to content of a mammogram image is a patient name or a patient birthdate; creating a match probability based on the comparison; determining whether the one or more previous mammogram image belong to the patient using the match probability; and releasing the one or more mammogram image to an entity requesting for previously taken mammogram image of the patient.