1. A diagnosis device for a medical examination combinable from a radiographic medical examination and a nuclear medical examination on a patient, comprising: a gamma radiation source arranged on a body of the patient that emits a gamma radiation; an x-ray source that emits an x-ray radiation to the body of the patient; a detector system comprising a plurality of detector elements configured to simultaneously measure the x-ray radiation for the radiographic medical examination and the gamma radiation for the nuclear medical examination without changing a position of the patient in an integrating measurement using the identical detector elements, wherein the detector system does not have a detector arrangement for a positron emission tomography examination; and an evaluation and control device connected to the x-ray source and the detector system configured to control the radiographic medical examination and the nuclear medical examination being performed consecutively.