A MRI (magnetic resonance imaging) scan uses a magnetic field and pulses of radio wave energy to take a clear detailed picture of internal organs and tissue. A similar technique called a MRA (magnetic resonance angiogram) takes pictures of blood vessels inside the body. Both procedures use magnetic and radio waves, meaning that there is no exposure to X-rays or any other damaging forms of radiation.

During some MRI scans and all MRA scans, a gadolinium-based contrast agent is injected into the patient's vein so blood vessels can be distinguished from other nearby tissues. The Food and Drug Administration (FDA) issued a second Public Health Advisory in December 2006 about a new skin disorder known as Nephrogenic Systemic Fibrosis or Nephrogenic Fibrosing Dermotherapy (NSF/NFD). The disease is debilitating and may cause death.

If you have had an MRI or MRA in the last five years, be on the lookout for symtoms below:
• Red or dark patches
• Skin may feel “woody” and surface may resemble the texture of the peel of an orange
• Contracting and or locking joints
• Skin lesions
• Yellow papules or plaques on or near the eyes
• Swelling and tightening of the skin, usually limited to the extremities, but sometimes involving the trunk

Other organs might be affected, including the lungs, liver, muscles, and heart. About 5% of patients have very rapid and progressive disease development, and some patients may die.