Amyloidosis is a group of diseases in which abnormal proteins, known as amyloid proteins, accumulate in organs such as the heart, the kidneys, the nervous system or the gastrointestinal tract, states the University of California San Francisco Medical Center. There are different types of amyloidoses.
The most common form of amyloidosis in the United States is primary amyloid, states the University of California San Francisco Medical Center. In primary amyloid, the light chain of the antibody protein is deposited in organs. Primary amyloidosis can be treated with chemotherapy, corticosteroids, biologic agents and autologous stem cell transplantation. Fortunately, amyloidosis is a rare disease, affecting eight out of 1 million people annually.