1. A method for quantitative evaluation of at least one image of a tissue from a patient, comprising: providing a database comprising stored pattern image data of tissue patterns that have been identified as predominantly or definitely benign or malignant, and further comprising a weighting factor for each stored pattern image, wherein the weighting factor indicates whether the pattern appears predominately in benign tissue changes or malignant tissue changes, the weighting factor is determined at least in part on the basis of the ratio of the frequencies with which the pattern occurs in benign tissue changes and in malignant tissue changes, and the weighting factors for patterns appearing predominantly in benign tissue changes and the weighting factors for patterns appearing predominantly in malignant tissue changes differ in their respective mathematical signs; analyzing the at least one image to determine whether any of the stored pattern images in the database are present in the at least one image within predetermined tolerances; identifying the weighting factor for each stored pattern image present in the at least one image; forming an evaluation factor from the sum of the weighting factors of the stored pattern images identified in the at least one image; and using the evaluation factor as a basis for deciding on further measures.