[A less common cause of malabsorption syndrome].

Casuistry of a 59-year-old woman is presented. The patient was examined for nephrotic syndrome with relapsing stenosis of vena cava inferior treated with stent implantation and with severe protein-caloric malnutrition. She had macroglosy, mild hepatomegaly, severe impairment of gastrointestinal motility, and had in her history an operation of carpal tunnel. It took two years to establish the diagnosis, which was amyloidosis of AL.