[Renal failure due to a villous adenoma]

Villous adenoma comprises 5.6% of colon tumors. Adenomas of the colon could be divided into tubular, villous, and tubulovillous adenomas. Villous adenomas are not as common as tubular neoplasms; however, usually they are larger and could cause a depleting syndrome characterized by dehydration, hyponatremia, hypokalemia, hypochloremia, and metabolic acidosis. In severe cases, shock and renal failure in older patients could cause death. Case of villous adenoma is presented in this article. Seventy-eight-year-old male who suffered permanent diarrhea for few years followed with acute renal failure. Villous adenoma was diagnosed. The conservative treatment had short renal function improvement. Hemodialysis had to be performed. Renal function was completely recovered after radical tumor surgery.