Amyloidosis is a condition in which amyloid, an abnormal protein, builds up in the tissues and organs and impacts how they work. The buildup of protein can occur throughout the body or in just one area.
Familial, or hereditary, amyloidosis is a rare form of the condition. Passed down through families, this condition is caused by an abnormal protein produced in the liver, called amyloid transthyretin.
Symptoms of this condition are generally subtle and can vary greatly from patient to patient.