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The kidney is divided into parenchyma and renal sinus. The renal sinus is hyperechoic and is composed of calyces, the renal pelvis, fat and the major intrarenal vessels. In the normal kidney, the urinary collecting system in the renal sinus is not visible, but it creates a heteroechoic appearance with the interposed fat and vessels.
Segmental hypoplasia or Ask-Upmark kidney is a rare renal disease where a part of the kidney has undergone hypoplasia. The number of renal lobes is reduced, and the kidney size is less than two standard deviations from the average, with the weight often being over 50g in adults and 12–25g in children.
Renal infarction is a medical condition caused by an abrupt disruption of the renal blood flow in either one of the segmental branches or the major ipsilateral renal artery. [3] Patients who have experienced an acute renal infarction usually report sudden onset flank pain , which is often accompanied by fever , nausea , and vomiting .
Some forms of imaging, such as kidney ultrasound or CT scans, may assess kidney function by indicating chronic disease that can impact function, by showing a small or shrivelled kidney. [citation needed]. Other tests, such as nuclear medicine tests, directly assess the function of the kidney by measuring the perfusion and excretion of ...
Pancake kidney (also known as disc, shield or doughnut kidney [1]) is a rare anomaly of the kidney with complete fusion of the superior, mild and inferior poles of both kidneys. The kidney is seen as a single, disc-shaped mass typically located in the pelvis. [2] Each kidney has its own ureter that does not cross the midline. [1]
The exact area is then located by ultrasound. Local anesthetic infiltration is used to numb the area. Then a needle would pass through to make the puncture on the kidney. Then, urine from the kidney is aspirated and check for its contents. If the urine is clear, dye will be injected to delineate the renal pelvis and renal calyx. If the urine is ...
These may include urine sediment analysis, renal ultrasound and/or kidney biopsy. Indications for kidney biopsy in the setting of AKI include the following: [17] Unexplained AKI, in a patient with two non-obstructed normal sized kidneys. AKI in the presence of the nephritic syndrome. Systemic disease associated with AKI. Kidney transplant ...
To monitor a kidney transplant. [1] The symptoms that a person may experience that cause the test to be requested may be blood in the urine, abdominal pain, abnormal kidney function tests, and frequent urinary tract infections (of which symptoms may include the need to pass urine frequently, pain on urination, and worsening urinary incontinence ...