Kidney Flashcards
Renal ultrasound indications
renal anomalies
prenatal findings
Uti, enuresis, diuresis, palpable mass
Normal neonate kidneys appearance
Renal pyramids or medulla appear as hypoechoic, triangular or rectangular structures-can be mistaken for cysts
renal lobulations normal?
in neonates and infants yes, should disapear with age
describe renal sinus in infants and children
less fat filled than in adults
renal pelvis is located in the
renal sinus
renal pelvis should measure ___mm in supine position
<10mm
cortex echogenicity compared to liver in normal premature infant
more echogenic than liver
is newborn sinus well seen
no, poorly defined because of lack of fat in infants
6-8 weeks brightness of cortex
isoechoic to liver and spleen
2-6 months brightness of cortex
hypo echoic to liver and spleen
more than 6 months brightness of cortex
Hypoechoic to renal sinus
length measurements of kidneys related to
childs weight, age and height
are abnormalities of kidneys unilateral or bilateral, symmetric or asymmetric?
Any of the above
What is more common uni or bilateral renal agenisis
unilateral
unilateral genesis more common in what gender
males
what kidney is usually missing in agenesis
left
what adrenal sign is seen on the unilateral agenesis side
lying down adrenal
bilateral renal agenesis allows living
yeah no
bilateral renal agenesis associated with
oligohydraminos and potters syndrome (affects the face)
what is absent with bilateral renal agenesis
bladder
crossed fused ectopic kidneys are prone to
obstruction
where are ectopic kidneys usually located
in pelvis occasionally in the chest
ectopic kidney can present as
palpable mass
what does a child with duplex kidney typically present with
UTI
sono features of duplex kidney (5)
Duplex kidney is longer than the contralateral side
Upper pole ureter prone to obstruction
Dilated ureter
Lower pole dilates due to vesicoureteric reflux
Duplex kidneys are often bilateral
Normal numb3r of pyramids
8-18
