In this report we evaluated the indications, the results and limits of MR examination in the diagnosis of neoplastic diseases affecting the ovary and in the staging of endometrial or cervical cancerous processes. MR findings are compared with the results of other techniques like Ultrasonography or Computed Tomography. The best advantages of MR imaging are the lack of radiation and the possibility of multiplanar studies of the pathologies. For these reasons we consider MR imaging a more accurate method for the study of neoplastic disease affecting the gynecologic sphere.