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Ch 59 fetal urogenital system
diagnostic medical sonography
52
Medical
Undergraduate 2
04/25/2012

Additional Medical Flashcards

 


 

Cards

Term
pelvic region
Definition
ectopic kidneys are most likely to be located where?
Term
duplex colecting system or double collecting system
Definition
most common anomaly of the urinary tract?
Term
horseshoe kidneys
Definition
kidneys that are fused at the lower poles
Term
15 weeks; 20 weeks
Definition
kidneys may be seen when and definetley by when?
Term
13 weeks
Definition
bladder can be seen as early as when?
Term
30-45 min
Definition
how often should the bladder empty?
Term
renal agenesis
Definition
complete absence of the kidneys
Term
oligohydramnios
Definition
renal abnormalities are the most frequent cause of what?
Term
12 weeks
Definition
when do fetal kidneys start to produce urine?
Term
16 weeks
Definition
By when does urine comprise the majority of the amniotic fluid?
Term
atleast one kidney is fully functioning
Definition
if an adequate amount of fluid is seen on ultrasound you can assume what?
Term
potter's syndrome
Definition

bilateral renal agenesis

nonvisualization of the bladder and renal arteries

fatal condition

Term
more common
Definition
unilateral renal agenesis is what compares to bilateral?
Term
compensatory hypertrophy
Definition

 

Contralateral kidney will compensate for missing kidney

Basically one kidney doing "double duty"

Term
bladder exstrophy
Definition

Primarily in males

Protrusion of the posterior wall of the bladder; bladder formed externally

 

Caused by defective closure of the abdominal wall, causing no covering of the urinary bladder

Term

hydroureters

 

Definition
abnormally dilated ureters
Term

Autosomal recessive polysystic kidney

(ARPKD)

Definition
Other name for infantile polycystic kidney disease
Term

Autosomal recessive polysystic kidney disease

(ARPKD)

Definition

Findings of bilateral, enlarged, echogenic kidneys, nondetectable urinary bladder, and oligohydramnios; microscopic cysts

 

Term

Autosomal dominant polycystic kidney disease

(ADPKD)

Definition

enlarged and echogenic kidneys

Differs from ARPKD in that a normal bladder and amniotic fulid volume is seen

Normally noted in adults

Term
Multicystic dysplastic kidney disease
Definition

identification of unilateral or bilateral cysts of varying sizes

 

bilateral smooth walled, noncomunicating cysts of varying sizes located within the renal fossae; absent urinary bladder and oligohydramnios

Term
Definition
bilateral multicystic dysplastic kidney is fatal
Term
posterior urethral valve
Definition

only in male fetuses

"key hole" bladder sign

 

Presence of valve in the urethra that causes obstruction

hydro, hydroureters, dilation of bladder and urethra

Term
ureteropelvic junction obstruction
Definition
obstruction at the level of the ureter entering the renal pelvis
Term
ureteropelvic junction obstruction
Definition
most common cause of hydro in neonate
Term
ureterovesical junction obstruction
Definition
obstruction at the level of the ureter entering the bladder
Term
bicornuate uterus
Definition
duplication of the uterus
Term
caliectasis
Definition
rounded calyces with renal pelvis dilation measuring greater than 10mm in the anteroposterior direction
Term
crossed renal ectopia
Definition
occurs when the kidney is located on the opposite side of its ureteral orifice
Term
cryptorchidism
Definition
failure of the testes to descend into the scrotum
Term
fetal hydronephrosis
Definition
dilated renal pelvis
Term
hermaphroditism
Definition
condition in which both ovarian and testicular tissues are present
Term
horseshoe kidney
Definition
forms when the inferior poles of the kidney fuse while they are in the pelvis
Term
hydrometrocolpos
Definition
collection of fluid in the vagina and uterus
Term
hydroureters
Definition
dilated ureters
Term
hypospadias
Definition
abnormal congenital opening of the male urethra on the undersurface of the penis
Term

infantile polycystic kidney disease

(IPKD)

Definition
autosomal recessive disease that affects the fetal kidneys and liver; the kidneys are enlarged and echogenic on ultrasound
Term
megacystis
Definition
the level of the urethra where the urinary tract may become obstructed
Term
megaureter
Definition
dilation of the lower end of the ureter; the common presentation of ureterovesical junction obstruction
Term
multicystic dysplastic kidney disease
Definition
multiple cysts replace normal renal tissue throughout the kidney; usually causes renal obstruction
Term
ovarian cyst
Definition
may be found in the fetus; results from maternal hormone stimulation and is usually benign
Term
pelvic kidney
Definition
occurs when the kidney does not migrate upward into the retroperitoneal space
Term
posterior urethral valve
Definition
occurs only in male fetuses; is manifested by the presence of a valve in the posterior urethra
Term
potter's syndrome
Definition
characterized by renal agenesis, oligohydramnios, pulmonary hypoplasia, abnormal facies, and malformed hands and feet
Term
prune belly syndrome
Definition
dilation of the fetal abdomen secondary to severe bilateral hydronephrosis and fetal ascites; fetus also has oligohydramnios and pulmonary hypoplasia
Term
pyelectasis
Definition
dialated renal pelvis measuring 5-9 mm in the anteroposterior direction
Term
renal agenesis
Definition
renal system fails to develop
Term
unicornuate uterus
Definition
anomaly of the uterus in which only one horn and tube develop
Term
urachal cyst
Definition
a small part of the lumen of the allantois that persists while the urachus forms
Term
ureteropelvic junction
Definition
junction of the ureter entering the renal pelvis; most common site of obstruction
Term
ureterovesical junction
Definition
junction where the ureter enters the bladder
Term
urethral atresia
Definition
this condition causes a massively distended bladder(prune belly)
Term
uterus didelphys
Definition
double uterus, double vagina
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