[Involvement of the renal interstitium in systemic diseases (I)]

Interstitial lesions which are frequent in systemic diseases such as systemic lupus erythematosus, Sjögren's syndrome, sarcoidosis and Dobrin's syndrome (acute interstitial nephritis with uveitis) are described as well as their clinical expression. The immune reactions which are recognized to be responsible for these lesions are discussed in respect to each of these diseases.