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Perinephric stranding involves mostly the urinary system especially the kidney. Stranding is known to have result from any acute process of any form of injury to the kidney. The urinary system composed of the kidney, bladder, ureters and urethra.


Perinephric stranding refers to the appearance of edema within the fat of the perirenal space on CT or MRI. While a degree of symmetric bilateral perinephric stranding is common, particularly in the elderly, asymmetric or unilateral perinephric stranding is an important sign of renal inflammation or of acute obstruction.


Stranding of perinephric fat is defined as linear areas of soft tissue attenuation in the perinephric space, which can result from any acute process or injury to the kidney.


What Is Perinephric Stranding? Dr. David Schulsinger explains that perinephric fat stranding is a hazy appearance in a linear pattern in the soft tissues in the perinephric space on a computed tomography image. The perinephric space, explains Aizenstein et al. is a cone-shaped compartment that contains the kidney, adrenal glands and perinephric ...


CT is also the best modality for fully evaluating the secondary signs of renal inflammatory disease and its complications. These signs include focal or global enlargement of the kidney, perinephric stranding, thickening of Gerota fascia, and abscess formation (, Fig 13,) (, 11,, 17,, 20,, 26,, 27).


Fluid collections around the kidneys on cross-sectional imaging may be caused by urine, blood, pus, lymph, or plasma. Ultrasonography (US), computed tomography (CT), and magnetic resonance imaging (MRI) can not only show and characterize the fluid, but also may help determine the underlying cause of the perinephric fluid collection, such as ureteric obstruction, kidney injury, infection, or ...


Perinephric Fluid Collections Due to Renal Lymphangiectasia. ... but also may help determine the underlying cause of the perinephric fluid collection, such as ureteric obstruction, kidney injury, infection, or renal lymphangiectasia. Renal lymphangiectasia is characterized by abnormal and ectatic lymphatic vessels within and around the kidneys ...


perinephric space. Ultrasound is very important in the follow-up of renal abscess and for guidance of percutaneous drainage. Case References. Coelho, RF, Schneider-Monteiro, ED, Mesquita, JL, et al. Renal and perinephric abscesses: analysis of 65 consecutive cases. World J Surg 2007; 31:431.


Renal abscess forms a walled-off cavity; perinephric abscess consists of a more diffuse liquefaction located between the renal capsule and Gerota’s fascia. Septation of the perinephric abscess is frequent, which makes drainage more difficult than that of renal abscess.


Secondary signs of obstructive uropathy, including hydronephrosis, perinephric and periureteral stranding, as well as ureterectasis, are well demonstrated on CT. [15, 14] Several reports compared unenhanced helical CT with intravenous urography (IVU), the established criterion standard in evaluating the genitourinary system.