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.
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 fat.
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.
Treatment of perinephric stranding depends on the existing underlying condition. Perinephric stranding is a clinical manifestation arising from any acute process of the urinary system and an injury to the kidney in any form. Preservation and restoration of renal function to gain and maintain optimal health is the purpose of treatment and ...
MRI features of obstructive uropathy include an abrupt change in ureteral caliber, renal enlargement, perinephric fluid, and when visible, a low-signal intensity ureteral filling defect on T2weighted imaging, which reflects the obstructing calculus (Figure 5).
Renal lymphangiectasia is characterized by abnormal and ectatic lymphatic vessels within and around the kidneys. Dilated lymphatics may result in peripelvic cysts (intrarenal lymphangiectasia) and perinephric fluid collections (extrarenal lymphangiectasia), which can be visualized using US, CT, and 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. As such, it is seen in condition...
They didn't find any renal calculi, but I've got cholilithiasis!! Several stones > 1 cm. Great. But there was a line that I just didn't understand, the radiologist said that perinephric straining was noted bilaterally. What the heck is that???? Is it just evidence of straining at stool or something tha is manifested in the perinephric area???
Free, official coding info for 2019 ICD-10-CM N28.89 - includes detailed rules, notes, synonyms, ICD-9-CM conversion, index and annotation crosswalks, DRG grouping and more.
Asymmetric stranding of the perinephric fat may be seen as a loss of definition of the fat-kidney interface or a very fine linear stranding compared with that of a well-defined interface around the contralateral kidney. Subtle perinephric stranding may be obscured unless the window and level of the CT image is such that the fat is readily ...