1. Structural aspects of the renal interstitium -- 2. Experimental models of tubulo-interstitial nephritis (TIN) -- 3. Tubulo-interstitial ultrastructural features in nephropathies -- 4. The consequences of tubulo-interstitial changes for renal function in glomerulopathies: a morphometric and cytological analysis -- 5. Medullary sponge kidney (tubular ectasia): a common finding in calcium nephrolithiasis -- 6. Cytological diagnosis of tubulo-interstitial nephritis -- 7. Analgesic nephropathy (AN) -- 8. Renal impairment in uric acid excretion in patients with primary gout -- 9. Oxalate nephropathy pathophysiology and biochemical features -- 10. Nephropathy induced by heavy metals -- 11. Acute renal failure due to allergic interstitial nephritis: long term outcome -- 12. Drug-induced tubulo-interstitial nephritis -- 13. Tubulo-interstitial nephropathies by industrial chemicals -- 14. Balkan nephropathy -- 15. Renal papillary necrosis and tubulo-interstitial nephritis -- 16. Reflux nephropathy -- 17. Proteinuria and brush border antigens in reflux nephropathy -- 18. Role of the immune system in obstructive uropathy -- 19. Potassium homeostatis in obstructive uropathy and interstitial nephritis -- 20. Tubulo-interstitial lesions in renal allograft -- 21. Historical review of concept of pyelonephritis -- 22. The nature and role of interstitial infiltrates in bacterial pyelonephritis -- 23. Urinary tamm-horsfall protein excretion in patients with pyelonephritis or glomerulonephritis -- 24. Cell-mediated immunity and recurrent urinary tract infections -- 25. Tissue infiltrates in human chronic pyelonephritis -- 26. Urinary tract infections in pregnancy -- 27. Role of the tubular basement membrane in the pathogenesis of polycystic kidney disease -- 28. Cystic disease of the kidney: clinical and pathophysiologic aspects -- 29. HLA system in uremics with cystic diseases -- 30. Tubulo-interstitial changes in HIV associated nephropathy: study of 14 cases -- 31. Two cases of renal interstitial granulomatous lesions with improvable renal failure in sarcoidosis -- 32. Acute interstitial nephritis with uveitis in adolescents -- 33. Familial interstitial nephritis in males without hearing loss -- 34. Effect of the ace-inhibitor enalapril on plasma concentration of atrial natriuretic peptide and on glomerular filtration rate in normotensive and hypertensive diabetic rats -- 35. Can plasma-exchange improve survival of patients with acute myeloma renal failure (AMRF) -- 36. Morphological and biochemical characteristics of human tubular epithelial cells โ{128}{156}in cultureโ{128}{157} deriving from nephronophthisis -- 37. Short-term effects on renal function of EDTA chelation therapy in lead-associated nephropathy