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9 Cards in this Set
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Column of Bertin
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Prominent invaginations of the cortex located at varying depths withing the medullary substance of the kidneys. May be the fusion of twp septa into a single column of twice normal thickness.
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cation: Medulla
Sonographic appearance: -Indentation of the renal sinus Differential Considerations: -Renal Mass effect |
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Dromedary Hump
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Cortical bulge that occurs on the lateral border of the kidney. Results from pressure on the developing fetal kidney by the spleen.
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Location: Lateral border of the kidney
Sonographic appearance: Identical to the renal cortex Mass effect Usually seen on the left kidney |
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Junctional parenchymal defect
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Triangular, echogenic area in the upper pol;e of the renal parenchyma that can be seen during normal scanning. Results from the normal extensions of the renal sinus in cases in which there is distinct division between the upper and lower poles of the kidney.
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Upper pole of renal parenchyma
Echogenic triangular area Mass effect. |
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Fetal lobulation
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Developmental variation that is typically seen in children and may be seen in adults. The surfaces of the kidneys are generally indented in between the calyces, giving the kidneys a slightly lobulated appearance.
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Surface of the kidney
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Lobar Dysmorphism
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A lobar fusion variant in which there is malrotation of the renal lobe. the middle and upper calyces may be splayed.
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Middle and upper calcyes
Elongation of upper and middle calyces Columns of Bertin |
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Duplex collecting system
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Central renal sinus
Two echogenic regions separated by moderately echogenic parenchymal tissue. "faceless" no echogenic renal pelvis seen on transverse view at the level of the mid pole. |
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Extrarenal pelvis
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Long renal pelvis that extends outside the renal border
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Horseshoe kidney
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Fusion of the polar regions of the kidneys during fetal development that almost invariably involves the lower poles.
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Kidneys seen more medial and anterior to the spine.
Fusion of the polar region, usually the lower poles. Inferior poles lie more medial, associated with pyelocaliecats |
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Renal cystic Disease
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Inflammatory or Necrotic Cyst
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clinical symptoms include the following:
Flank Pain Hematuria Proteinuria White blood cells in urine Increased protein |
