Inflammatory Bowel Diseases in Renal Transplantat Recipients: A Case Series and Review of the Literature.

Inflammatory bowel diseases are autoimmune disorders affecting the gastrointestinal tract and producing a wide variety of extraintestinal manifestations. Kidneys are a rare target organ of their extraintestinal activity, but if affected, renal function could deteriorate to end-stage kidney disease, which is curable only by organ transplantation. Renal calculi are the most common pathological kidney manifestation in IBD patients, followed by tubulointerstitial nephritis, glomerulonephritis, and other kidney pathologies.