An apparatus for performing-tomosynthesis and mammography includes an X-ray detector for receiving and detecting X-rays in a first, detection plane a plurality of X-ray sources are positioned in a second plane substantially at a right angle to the first plane and which can be individually activated for emitting a corresponding X-ray beam towards the first, detection plane, at least a first part of the sources movable relative to the detector and including a first source mobile in a first direction of movement parallel with the first, detection plane for emitting X-rays from a plurality of operating positions along said first direction of movement a region for positioning the breast a processing and control unit, for controlling the X-ray sources and receiving a signal relating to the detected X-rays passed through the breast to derive radiographic image representative of the internal structure of the breast.
