**1. Introduction**

Modern amyloid nomenclature, based on the amyloid fibril proteins, includes 31 types of amyloidosis [1]. Renal involvement is commonly seen in AL, AH, AA, ALECT2, and several other hereditary and acquired amyloidoses [1–4], main features are summarized in **Table 1**.

We describe below two most common types of amyloidosis, damaging kidneys—AA amyloidosis and AL amyloidosis.
