Characterization of ovarian and non-ovarian adnexal lesions is of great relevance in order to plan adequate therapeutic procedures and influence on patient’s management. Optimal assessment of adnexal masses requires a multidisciplinary approach, based on physical examination, laboratory tests and imaging techniques. MRI provides excellent contrast resolution, resulting in accurate tissue characterization and improved anatomic delineation. The quantitative evaluation of the apparent diffusion coefficient (ADC) in DWI helps in distinguishing between malignant and benign tissues and for monitoring therapeutic outcomes. In our study ovarian pathologies (71.4%) were the most common pathologies among which the benign ovarian lesions were the most common in which the most common were endometriotic cyst (38.1%) followed by multilocular ovarian cysts (23.8%). Non Ovarian lesions were only 28.6% among which the most common was hydrosalpinx (27.2%). Malignant ovarian lesions were 30%. Matthews correlation coefficient for both benign and malignant lesions were calculated which was 0.9, which represent perfect prediction between our findings on MRI and follow up.MRI is used to identify the anatomic origin, shape, composition, diffusion restriction and enhancement pattern of the mass, through which a close differential diagnosis, and often a definitive diagnosis can be made.
