Familial Visceral Amyloidosis
A rare genetic disorder involving widespread amyloidosis (abnormal buildup of amyloid protein in tissues) which tends the affect the kidneys severely. It is associated with fibrinogen alpha chain, apolipoprotein A1, and lysozyme. It is also known as "Ostertag" type, after B. Ostertag, who characterized it in 1932 and 1950.