[Morphology of the juxtaglomerular appartus in Bartter's syndrome (hyperplasia of the juxtaglomerular complex with secondary aldosteronism without hypertension)].

In this paper a case of Bartter's syndrome is presented, stressing two facts: the asymmetric hyperplasia of the juxtaglomerular apparatus mostly located at the efferent arteriole. In the other hand, a new interpretation is suggested over so called "proliferative glomerulitis" seen in this syndrome. This hypothesis is based on data suggesting not a true inflammatory process but a similar lesion observed in the postnatal glomerular regression.