What are the 3 layers of the baldder?
What is the normal thickness of the bladder when it is distended?
3mm
What is the normal thickness of the bladder when it is empty?
5mm
Which bladder is more thick, infants or adults?
Infants
What should post void residual not exceed?
20mL
Where do the ureters meet the bladder?
At the trigone
What is the normal US appearance of the bladder?
Anechoic fluid-filled structure located in the pelvic midline
What is the normal US appearance of the ureters?
Small echogenic protuberances on the posterior aspect of
the bladder
What causes bladder exstrophy?
Failure of the mesoderm to form over the lower abdomen
When is bladder exstrophy typically discovered?
In utero
What is the US appearance of bladder exstrophy? (3)
What are 3 differential diagnosis for bladder exstrophy?
What causes bladder diverticulum?
Bladder wall muscle weakness
What are the clinical findings of bladder diverticulum? (3)
What is the US appearance for bladder diverticulum? (3)
What are 3 differential diagnosis for bladder diverticulum?
2. Fluid-filled bowel 3. Ascites
Bladder ureterocele
Congenital obstruction of the ureteric orifice
What are the clinical findings for bladder ureterocele? (2)
2. UIT
What is the US appearance for bladder ureterocele?
Hyper echoic septation seen within the bladder at the ureteric orifice
- demonstrated when urine enters the bladder
What are 3 differential diagnosis for bladder ureterocele?
What are the clinical findings for urachal sinus? (2)
2. Fluid draining from the umbilicus
What is the US appearance for urachal sinus?
Linear tubular structure extending from the apex of the urinary bladder to the umbilicus
What are 2 differential diagnosis for urachal sinus?
2. Subcutaneous fat
What causes bladder calculus?
Urinary stasis