[Can amyloidosis regress?].

Amyloidosis always worsens in the absence of treatment. Suitable treatments may improve the prognosis, but results depend on the type of amyloidosis. AA amyloidosis can improve according to clinical and biological criteria after the treatment of underlying disease, or after colchicine therapy in familial mediterranean fever. Histological regression is very unusual. A small clinical improvement or at least a stabilisation can be observed in familial amyloidosis with mutation in plasma transthyretin, after liver transplantation. However, the follow-up is short and the mortality is high. In AL amyloidosis, the survival is usually less than 15 months. Some patients have a better survival when they receive chemotherapy similar to that given in multiple myeloma. This could indicate an amyloidosis improvement, or at least a stabilisation.