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. Polyarteritis nodosa (PAN) is a rare disease that results from blood vessel inflammation (vasculitis) causing injury to organ systems. The areas most commonly affected by PAN include the nerves, intestinal tract, heart, and joints.asculitis is a general term that refers to inflammation of the blood vessels. When inflamed, the blood vessel may become weakened and stretch in size, which can lead to aneurysms, or become so thin that they rupture resulting in bleeding into the tissue.