Amyloidoses are protein-derived metabolic disorders caused by the depo
sition of amyloid of chemically different structures in a variety of t
issues. They occur in numerous animal species. Chronic inflammatory or
tumorous processes can be the underlying condition, but frequently th
e pathogenesis is not clear. Clinical signs develop depending on the d
egree of the amyloid deposits and on the organs involved, Treat ment i
s mainly directed against the predisposing disease.