We report a relatively rare case of renal replacement lipomatosis presenting as a renal mass. Computed tomography revealed a predominantly low-density and roundish mass, with an irregular renal parenchyma, high-density calcification, and abundant low-density fat. The differential diagnosis before surgery was squamous cell carcinoma, teratoma, or angiomyolipoma of the kidney. The case was initia...

Continuous renal replacement therapy (CRRT) is a blood purification modality that uses a combination of convection and diffusion to eliminate uremic toxins and correct electrolyte imbalances. Although CRRT is usually associated with the treatment of acute renal failure, it can also be useful in treating many types of toxicoses and drug overdoses. Unlike intermittent hemodialysis, in which the p...

Acute renal failure (ARF) is currently more frequently seen as part of a more complex syndrome defined by sepsis and/or multiple organ failure. Evolution in the field of hemodialysis has led to a parallel development of new systems for continuous renal replacement therapy (CRRT) in critically ill patients. The various CRRT modalities differ in the type of vascular access, application of diffusi...

Renal replacement therapy can be applied either in an intermittent fashion or in a continuous fashion in severe acute kidney injury. To date, no modality has been shown to consistently improve patient survival. In the study recently reported by Sun and colleagues, continuous application of renal replacement therapy was associated with improved renal recovery, defined by lower risk of long-term ...

Acute renal failure is present in 1 to 5 percent of patients at hospital admission and affects 15 to 20 percent of patients in intensive care units [2]. In a study in Madrid, pre-renal type of acute renal failure accounted for 21% of cases, post-renal type constituted 10% of cases and intrinsic-type accounted for 69% of cases [2]. Renal replacement therapy is the life saving procedure for patie...

Renal replacement lipomatosis (RRL) is a rare condition that occurs at the end of the spectrum of renal tissue replacement by fat. Xanthogranulomatous pyelonephritis (XGP) is a granulomatous inflammation characterized by destruction of renal parenchyma and replacement by lipid-laden macrophages. We present the case of a 75-year-old man who complained of severe anemia 34 years after right nephro...

Acute renal failure is present in 1 to 5 percent of patients at hospital admission and affects 15 to 20 percent of patients in intensive care units [2]. In a study in Madrid, pre-renal type of acute renal failure accounted for 21% of cases, post-renal type constituted 10% of cases and intrinsic-type accounted for 69% of cases [2]. Renal replacement therapy is the life saving procedure for patie...

Acute renal failure (ARF) is a common event in critical patients usually taking place in a multiorganic failure context. This disorder implies a great clinical challenge. ARF could be defined as a sudden deterioration of the renal function that results in a loss of electrolyte, acid-base and fluid balance control, with subsequent accumulation of nitrogen wastes. Although ARF can appear in a wid...