[Development of nephrotic syndrome in a patient with Hashimoto's Thyroiditis]

The development of nephrotic syndrome in concomitance with Hashimoto's thyroiditis is an in frequent association in the pediatric age.

To report an infrequent complication of au toimmune thyroiditis, such as the appearance of nephrotic syndrome.

A 10-year-old patient presenting with nephrotic syndrome and goiter. A history of autoimmune thyroiditis and un treated hypothyroidism was detected. Corticosteroid and hormone replacement therapy (levothyro- xine) is started, achieving a good clinical and laboratory response.

Autoimmune thyroi ditis impacts renal physiology through immunological and non-immunological mechanisms. At the same time, renal repercussions can affect thyroid function. The importance of this communication lies in reporting an infrequent complication of autoimmune thyroiditis, such as the appearance of nephrotic syndrome.