Patients are frequently asked about iodine or seafood allergy before IV contrast material is administered because of a commonly held belief among radiologists and others in the medical community of a specific cross-reactivity between iodinated radiographic contrast material and other iodine-rich substances.
Pericarditis is inflammation of the pericardium, two thin layers of a sac-like tissue that surrounds the heart, holds it in place and helps it work. A small amount of fluid keeps the layers separate so that thereâs no friction between them.
Polyarteritis nodosa (PAN) is a type of vasculitis that mainly affects medium-sized arteries. Vasculitis includes a group of diseases where your immune system attacks the blood vessels and results in inflammation.olyarteritis nodosa (PAN) is a type of vasculitis that mainly affects medium-sized arteries. Vasculitis includes a group of diseases where your immune system attacks the blood vessels and results in inflammation.