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Renal cortical necrosis (RCN) is a rare cause of acute kidney failure. The condition is "usually caused by significantly diminished arterial perfusion of the kidneys due to spasms of the feeding arteries, microvascular injury, or disseminated intravascular coagulation " and is the pathological progression of acute tubular necrosis . [ 1 ]
CVA tenderness often indicates kidney pathology, but it may result from other medical problems. [4] CVA tenderness is often present in acute pyelonephritis . [ 5 ] [ 4 ] [ 6 ] [ 7 ] CVA tenderness may be present in patients who have a kidney stone , [ 8 ] [ 7 ] a stone in the ureter , [ 8 ] a ureteropelvic junction obstruction, [ 8 ] a kidney ...
Kidney infarction: CT scan of the abdomen showing partial infarct of the left kidney. Specialty: Nephrology: Symptoms: Abdominal pain, nausea, vomiting, and fever. [1] Complications: Acute kidney injury and chronic kidney disease. [1] Causes: Cardioembolic disease, renal artery injury, and hypercoagulable state. [1] Diagnostic method
The costovertebral angle (Latin: arcus costovertebralis) is the acute angle formed on either side of the human back between the twelfth rib and the vertebral column. [ 1 ] The kidney lies directly below this area, so is the place where, with percussion ( Latin : sucussio renalis ), pain is elicited when the person has kidney inflammation .
CT scan or kidney ultrasonography is useful in the diagnosis of xanthogranulomatous pyelonephritis; serial imaging may be useful for differentiating this condition from kidney cancer. [10] Acute pyelonephritis with increased cortical echogenicity and blurred delineation of the upper pole [20]
Lloyd's sign indicates the presence of renal calculus or pyelonephritis when pain is elicited by deep percussion in the back between the 12th rib and the spine. [1] It is closely related to costovertebral angle tenderness, as the area of percussion is the same. However, Lloyd's sign is specifically defined as positive costovertebral angle ...
Renal ultrasonography of a person with tuberous sclerosis and multiple angiomyolipomas in the kidney: Measurement of kidney length on the US image is illustrated by '+' and a dashed line. CT scan of a renal angiomyolipoma. It involves the renal cortex, and has an attenuation of less than 20 HU on the Hounsfield scale, which are typical ...
In terms of cause, almost any condition that involves ischemia can lead to renal papillary necrosis. A mnemonic for the causes of renal papillary necrosis is POSTCARDS: pyelonephritis, obstruction of the urogenital tract, sickle cell disease, tuberculosis, cirrhosis of the liver, analgesia/alcohol use disorder, renal vein thrombosis, diabetes mellitus, and systemic vasculitis. [3]