Autosomal-dominant polycystic kidney disease is an inherited disorder characterized by the development and growth of cysts in the kidneys. Urinary protein excretion is generally less than 1 g/day, and the association of the nephrotic syndrome with this condition is considered rare. A 39-year-old man with autosomal-dominant polycystic kidney disease and nephrotic-range proteiuria is described. During admission, he had general edema and a diagnosis of pulmonary tuberculosis. The patient had hyperlipidemia, hypoalbuminemia, and 11.8 g/day proteinuria. The gingiva and rectum biopsies were performed in order to evaluate the etiology of nephrotic syndrome, and revealed AA amyloidosis thought to be secondary to pulmonary tuberculosis. We maintained the antituberculous treatment and began colchicine at a dose of 2 g/day and candesartan 8 mg/day. To our knowledge, this is the first autosomal-dominant polycystic kidney disease case with nephrotic syndrome due to amyloidosis secondary to pulmonary tuberculosis.

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