Fetal Kidneys Flashcards
(36 cards)
when do the kidneys begin to develop
7 weeks
when does the bladder start to form
8 weeks
when do the kidneys ascend to renal fascia
10 weeks
urinary fully bladder develops when
12 weeks
when does genitalia fully form
14 weeks
when are the kidneys visual
by 20 weeks
does does urine production begin
11 weeks
what vessels are lateral to the bladder
internal iliac arteries
horse shore kidneys
kidneys attached at the lower pole
unilateral kidney agenesis
no oligo
bladder is visualized
kidney enlarged
when can bilateral renal agenesis be diagnosed
16 weeks
bilateral renal agenesis is more common in males or females
males
most severe GU anomaly
bilateral renal agensis
sono characteristics of bilateral renal agenesis
non vis. of bladder or kidneys
dolichocephalic head
small thorax
oligo between 16 to 28 weeks
pyelectasis dilation between 15 and 20 weeks
> 4 mm
pyelectasis dilation between 20 to 30 weeks
> 8 mm
pyelectasis dilation after 30 weeks
> 10mm
dilatation w/ obstruction
UPJ
UVJ
PUV
UPJ
most common
contralateral kid. functions normal
dilated renal pelvis
UVJ obstruction
usually duplication anomaly of ectopic ureterocele
dilated upper pole of kidney
PUV
most common bladder outlet obstruction
more common in males
membranous fold in posterior urethra
PUV sono findings
bladder wall thickening
BL dilation
hydro
oligo
MCDK
most common incidental finding
enlarged kidneys
contralateral usually abnormal
MCDK sono findings
lobulated reniform shape
multiple cyst
increased echogenicity
