The MaXIMA Breast Lesions Models Database is intended to provide researchers with both segmented and mathematical computer-based breast lesion models with realistic shape. The database is part of the MaXIMA project (maxima-eu.com). Contents: Breast cancer models obtained by segmentation of 3D patient breast tomosynthesis images. Breast cancer models obtained by segmentation of whole body and breast cadavers CT images. Breast cancer models based on a mathematical algorithm. Anonymized digital breast tomosynthesis patient images. Mammography images of StepWedge phantoms from different materials. Mammography images of breast phantoms. Mammography reference images. The following articles describe the MaXIMA Breast Lesions Models Database and how it is created: Bliznakova, K., Dukov, N., Feradov, F., Gospodinova, G., Bliznakov, Z., Russo, P., Mettivier, G., Bosmans, H., Cockmartin, L., Sarno, A., et al, Development of breast lesions models database, Physica Medica, 64, 293-303, 2019, DOI: https://doi.org/10.1016/j.ejmp.2019.07.017 Dukov, N., Bliznakova, K., Feradov, F., Buliev, I., Bosmans, H., Mettivier, G., Russo, P., Cockmartin, L., Bliznakov, Z., Models of breast lesions based on three-dimensional X-ray breast images, Physica Medica, 57, 80-87, 2019, DOI: https://doi.org/10.1016/j.ejmp.2018.12.012 Please READ and FOLLOW all of the instructions, or your request will not be considered. Contacts: Kristina Bliznakova, MaXIMA project coordinator kristina.bliznakova@gmail.com