familial renal amyloidosis familial renal amyloidosis familial renal amyloidosis is a form of amyloidosis primarily presenting in the kidney. familial renal amyloidosisother namesfamilial visceral amyloidosis, hereditary amyloid nephropathythis condition is inherited in an autosomal dominant mannerspecialtynephrology it is associated most commonly with congenital mutations in the fibrinogen alpha chain and classified as a dysfibrinogenemia (see hereditary fibrinogen aα-chain amyloidosis). and, less commonly, with congenital mutations in apolipoprotein a1 and lysozyme. it is also known as "ostertag" type, after b. ostertag, who characterized it in 1932 and 1950.