Volume 8, Number 3Reviews in UrologySpurious Hypocalcemia After Gadodiamide-Enhanced Magnetic Resonance Imaging: A Case Report and Review of the LiteratureCase ReviewJames G CairidiChristopher D MooreRobert C NewmanGadolinium-enhanced magnetic resonance imaging is a diagnostic modality widely used in urologic practice. We report on a 54-year-old woman in whom a critically low serum calcium level was measured with standard colorimetric assay after gadodiamide-enhanced magnetic resonance imaging. The same phenomenon was noted in 2 other patients seen in our practice. Repeat serum calcium measurements performed several hours later were within normal limits. Commercially available gadolinium-based contrast agents might precipitate critically low serum calcium values when measured by standard colorimetric assay. Physician awareness of gadodiamide-induced spurious hypocalcemia might prevent unnecessary therapeutic interventions. [Rev Urol. 2006;8(3):165-168]Magnetic resonance imagingGadoliniumHypocalcemia