EXAM: Renal Ultrasound (US)
INDICATION: 62-day-old girl with hydronephrosis.
TECHNIQUE: Ultrasound imaging of the kidneys and urinary bladder was obtained using two-dimensional grayscale imaging. Color Doppler images were obtained to evaluate vascular flow.
FINDINGS:
Right Kidney:
Length: 5.2 cm
Prior length: 5.5 cm
Parenchyma: Diffusely thin with tiny dysplastic cysts
Pelvic dilatation: Severe with extrarenal pelvis, APD measures 2.2 cm, previous APD 2.4 cm
Calyceal dilatation: Severe
Hydronephrosis grade: 4
Interval hydronephrosis change: None
Left Kidney:
Length: 4.8 cm
Prior length: 4.6 cm
Parenchyma: Normal
Pelvic dilatation: None, APD N/A, previous APD N/A
Calyceal dilatation: Major calyces: None, Minor calyces: None
Hydronephrosis grade: 0
Interval hydronephrosis change: None
The ureters are not seen. There is adequate distention of the bladder (9 mL), which appears normal. Incidental note is made of a prominent right ovary measuring up to 1.7 x 1.6 x 2 cm with multiple follicles (less than 1 cm), as is not uncommon in this age.
IMPRESSIONS:
1. Right grade 4 hydronephrosis with tiny dysplastic parenchyma cysts and large extrarenal pelvis, suggestive of long-standing UPJ obstruction.
2. Normal appearance of the left kidney and bladder.
