Extrarenal pelvis is a variant of normal renal pelvis, a chamber where all urine forming ducts meet before transmitting the formed urine via a long tube, ureter, to the urinary bladder. Normally, the renal pelvis is surrounded by kidney substance and fat, and hardly has any capacity.
An extrarenal pelvis is a renal pelvis that protrudes from the familiar, bean-shaped indentation in the middle of the kidney. "Bilateral" indicates that both pelvises in both kidneys exhibit this anatomical variation.
Extrarenal pelvis is the presence of the renal pelvis outside the renal hilum. Extrarenal pelvis is caused by an elongation of the urine-forming ducts of the kidney.
In general the concern is a larger pelvis means urine is stagnant. Helpful, trusted answers from doctors: Dr. McCoy on extrarenal pelvis: The pelvis of the kidney is middle where everything centers. As urine is made by filtering blood this area collects urine then leads out through ureters to bladder.
Q: My daughter is three years old. She is suffering from urine infection and high temperature (40°C). She underwent a renal ultrasound scan. The scan imaging showed an extrarenal pelvis on the left side.
In most individuals the renal pelvis is small. Occasionally it is enlarged and protrudes out from the kidney, called an extrarenal pelvis; the term extrarenal simply means that it is protruding out, but the implication is that this is a normal anatomic variant.
renal pelvis the funnel-shaped expansion of the upper end of the ureter into which the renal calices open; it is usually within the renal sinus, but under certain conditions a large part of it may be outside the kidney (extrarenal pelvis).
Extrarenal pelvis stone may cause obstruction to drainage of urine from the calyx into renal pelvis resulting in accumulation of urine in calyx and extrarenal pelvis causing dilatation which might lead to possibility of obstruction to excretion of urine.
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Helpful, trusted answers from doctors: Dr. Lin on extra renal pelvis: Despite medical advance and known to most if not all, all modern medical care are still based on INDIRECT evidence resulting from continual collection & analysis of available experience so to apply currently available knowledge, skills, technology, drugs, commonsense, and tads of wisdom at reasonable time in reasonable way ....