Volume 12, Number 4Case ReviewChronic Spontaneous Nephrocutaneous Fistula Associated With Renal Replacement LipomatosisAbdelhak KhalloukMoulay Hassan FarihMohamed Fadl TaziChronic spontaneous nephrocutaneous fistula is a rare renal disease. Renal replacement lipomatosis (RRL) is the result of the atrophy and destruction of renal parenchyma with massive increases in the amount of fat in the sinus and perirenal space. The 2 conditions can be associated because they may have the same etiology. Indeed, urolithiasis is the most common cause of these diseases. We report a case of chronic nephrocutaneous fistula associated with RRL due to both urolithiasis and renal tuberculosis.[Rev Urol. 2010;12(4):e190-e192 doi: 10.3909/riu0458]© 2010 MedReviews®, LLCNephrocutaneous fistulaRenal replacement lipomatosisRenal tuberculosis