congenital anomalies of the urinary tract Flashcards
(38 cards)
what is vesicoureteric junction reflex?
retrograde flow of urine into upper urinary tract
which sex is more affected by VUR?
females
describe grade 1, 2 & 3of VUR.
grade 1: flow into non dilated ureter
grade 2: flow into non dilated pelvis and calyces
grade 3: mild to moderate dilation of the ureter and renal pelvis
describe grade 4&5 of VUR.
grade 4: moderate dilation and/or tortuosity of ureter
grade 5: severe dilation and toruosity of the ureter renal pelvis and calyces
what is the gold standard imaging for VUR?
micturition cystourethrography
what is diuretic renal scan DMSA used for?
visualizes scarring and assess renal function
what is the treatment for grades 1&2 VUR?
prophylactic antibiotics
what is the treatment for grades 3-5 VUR?
surgery–> uretherovesical reimplantation or endoscopic injections
when is surgery indicated for VUR?
patients with persistent reflux despite antibiotic trials
urethras duplication—->
frequent anomaly
what is the male to female ratio in duplication of the urinary system?
1:2
what is Weigert-Myer Law?
urethras orifice of upper renal segment drains inferiorly and medially to the orifice of the lower segment
which orifice is commonly obstructed in duplication of urinary system?
orifice draining the upper segment
which orifice commonly refluxes in duplication of urinary system?
orifice of the lower segment
how is duplication of urinary system discovered?
MRU
Define ectopic ureter?
ureter opening in another location and not in the bladder
what is the percentage of ectopic bladder occurring with duplication of urinary system?
80%
20% with single system
how does ectopic bladder present in females
incontenence
what are the common site of ectopic bladder in females?
vestibule vagina urethera
what are the common site of ectopic bladder in males?
posterior urethera
seminal vesicles
define ureterocele
congenital cystic balloting of the terminal submucosal ureter
what are the 2 types of ureterocele? and describe both.
simple–> in trigon
ectopic–> obstructor the bladder neck or prolapse from female urethera
what is the incidence of undescended testis in full term boys?
3.4%-5.8%
what is the cause of undescended testis?
unclear but androgens may have an important role