Multimodal system for obtaining senological images by means of X-ray and Molecular Breast Imaging techniques, comprising: - a supporting plane for the breast, - a gamma ray detector for obtaining at least a molecular image, - a detection module comprising said gamma ray detector, where said gamma ray detector is arranged on a first plane, parallel to said supporting plane, as well as: ∘ an X-ray detector for obtaining at least an X-ray image and a scintigraphic collimator; said scintigraphic collimator, when in use, being coupled with said gamma ray detector and forming with said gamma ray detector a first gamma camera; the detection module being configured to allow an extraction of the X-ray detector to insert the scintigraphic collimator or the extraction of the scintigraphic collimator to insert the X-ray detector; ∘ said detection module further comprising a compartment configured for receiving one at time said X-ray detector or said scintigraphic collimator, where said compartment is arranged between said supporting plane and said gamma ray detector on a second plane, parallel to said supporting plane, different from said first plane, and said compartment comprising first guiding means (3A;3B) to insert said X ray detector or said scintigraphic collimator. - a supporting plane for the breast, - a gamma ray detector for obtaining at least a molecular image, - a detection module comprising said gamma ray detector, where said gamma ray detector is arranged on a first plane, parallel to said supporting plane, as well as: ∘ an X-ray detector for obtaining at least an X-ray image and a scintigraphic collimator; said scintigraphic collimator, when in use, being coupled with said gamma ray detector and forming with said gamma ray detector a first gamma camera; the detection module being configured to allow an extraction of the X-ray detector to insert the scintigraphic collimator or the extraction of the scintigraphic collimator to insert the X-ray detector; ∘ said detection module further comprising a compartment configured for receiving one at time said X-ray detector or said scintigraphic collimator, where said compartment is arranged between said supporting plane and said gamma ray detector on a second plane, parallel to said supporting plane, different from said first plane, and said compartment comprising first guiding means (3A;3B) to insert said X ray detector or said scintigraphic collimator. ∘ an X-ray detector for obtaining at least an X-ray image and a scintigraphic collimator; said scintigraphic collimator, when in use, being coupled with said gamma ray detector and forming with said gamma ray detector a first gamma camera; the detection module being configured to allow an extraction of the X-ray detector to insert the scintigraphic collimator or the extraction of the scintigraphic collimator to insert the X-ray detector; ∘ said detection module further comprising a compartment configured for receiving one at time said X-ray detector or said scintigraphic collimator, where said compartment is arranged between said supporting plane and said gamma ray detector on a second plane, parallel to said supporting plane, different from said first plane, and said compartment comprising first guiding means (3A;3B) to insert said X ray detector or said scintigraphic collimator.