What is lipomatosis of the kidney?
Renal replacement lipomatosis (RRL) is a rare and benign condition characterized by proliferation of renal sinus/hilar and perirenal fatty tissue with marked atrophy of the renal parenchyma. It is seen with calculus disease in 70% of cases and associated with chronic inflammation and hydronephrosis.
What is mild renal sinus Lipomatosis?
Renal sinus lipomatosis is the accumulation of excessive nontumorous fatty tissue within the renal sinus. In the normal young adult, a thin layer of loose fatty tissue envelops the pelvocalyceal and vascular structures which traverse the sinus.
What is a renal sinus?
The renal sinus is a central spacious cavity formed by the extension of the perinephric space into the deep recess located at the medial border of the kidney (,Figs 1, ,2). The renal sinus is surrounded by the kidney parenchyma laterally.
What is retroperitoneal Lipomatosis?
Retroperitoneal Lipomatosis. —Lipomatosis is a benign metaplastic overgrowth of mature unencapsulated white fat. The condition usually affects the extraperitoneal pelvis and less commonly affects the abdominal retroperitoneum—specifically the perinephric space.
What causes sinus Lipomatosis?
Abstract. Renal sinus lipomatosis (RSL) represents an abnormal proliferation of the adipose tissue surrounding the renal pelvis of uncertain origin, associated with aging, obesity, steroid excess, infections, and calculosis.
What causes sinus lipomatosis?
What is retroperitoneal lipomatosis?
What is difference between renal sinus and renal pelvis?
The central region of the kidney contains the renal pelvis, which is located in the renal sinus, and is continuous with the ureter. The renal pelvis is a large cavity that collects the urine as it is produced. The periphery of the renal pelvis is interrupted by cuplike projections called calyces.
What is medullary sinus fat?
Fat in the renal sinus (RS), a region of the kidney in which low pressure venous and lymphatic vessels are present, may indirectly influence blood pressure (BP). The purpose of this study was to assess the association between RS fat and control of BP upon receipt of antihypertensive medications.