[Morphogenesis of immune complex glomerulonephritis]

Morphological changes in the kidneys in nonspecific ulcerative colitis were studied and the following variants of the kidney involvement were established: (1) allergic changes manifested by membraneous and mesangio-proliferative glomerulonephritis, renal vasculitis, phenomena of stromal desorganization with lymphoid and histiocyte infiltrations; (2) metabolic changes manifested by various kinds of degeneration of the tubular apparatus including changes typical of potassium-deficient nephropathy; (3) toxic -- necrotic nephrosis and (4) infectious -- nonsuppurative and suppurative interstitial nephritis.