This handbook provides a short, clear, useful and interesting guide to the findings in renal biopsy specimens. It is intended to be of practical help primarily to pathologists and trainee pathologists who look at these specimens, but also to nephrologists and transplant surgeons and their trainees, medical students, and others who have contact with anyone with renal disorders, including nurses on nephrology, dialysis and transplant units, and pharmacists. This handbook shows how a diagnosis can be reached on a renal biopsy specimen and what information taken from a specimen is clinically significant and helpful. It shows how the diagnosis can be made starting from simple information, the clinical indication for biopsy, followed by interpretation of changes seen in the specimen. The emphasis is on common conditions and on the rule that diseases give characteristic clinical features. Essential information needed for an understanding of renal disorders is given simply and concisely. This includes accounts of the clinical presentation of renal disorders, their causes and pathogenesis, and their likely outcome. Other features include practical tips on the differentiation between possible diagnoses and information about eponyms.