Objective: To examine the performance of gadolinium in iodine-sensitive women undergoing hysterosalpingography. Design: Case-control study. Setting: Odessa Regional Hospital, Texas. Patient(s): Seven women, three with no allergies to iodinated contrast medium (controls) and four with known allergies. Intervention(s): Use of gadolinium in women with known allergies to iodinated contrast medium. Main Outcome Measure(s): How does gadolinium compare as a diagnostic tool in hysterosalpingogram versus iodinated contrast medium? Result(s): The images of the uterus and unobstructed fallopian tubes produced by gadolinium appear to yield equally diagnostic results compared with images produced by iodinated contrast medium. Conclusion(s): It appears that hysterosalpingogram with gadolinium is a viable option for patients that are allergic to iodinated contrast medium. [ABSTRACT FROM AUTHOR]