Endometriosis is a chronic and recurrent gynecological disorder that affects women of childbearing age; it may be manifested by infertility or chronic pelvic pain. Evaluation of this disease by clinical examination and ultrasound scan is usually of limited value. With the new advances in technology, MRI has proved to be highly helpful in the assessment of endometriosis, both for diagnosis and for evaluation of its extent. This dysfunction may adversely affect the organs of the reproductive system as well as gastrointestinal and genitourinary systems. Given MRI capability of tissue characterization and high contrast resolution, it is recommended as first-line technique in the evaluation of this condition.

The term disorders of the anorectal function encompasses a group of diseases commonly present in gastroenterological consultation; conditions that have a significant impact on patients' quality of life. Imaging studies, mainly defecography, are essential for the diagnosis of these diseases. Taking into account that there is overlap of several of them in the same patient, some may be underdiagnosed when relying solely on anamnesis and physical examination. Given the multiplanar capability of MRI, visualization of perirectal soft tissue, its lowest invasiveness in relation with other studies and the absence of ionizing radiation or barium, MRI defecography has been installed as an imaging modality widely used in our milieu, replacing the classical defecography performed under fluoroscopy.