Patient's question:
Six and a half years old, left kidney hydronephrosis 2.61.3cm, cortex and medulla thickness 1.8cm. Yingkou Development Zone Hospital Urology Department Dalian Children's Hospital Pediatric Urology DepartmentDoctor's answer:
Hello, according to the ultrasound report, the child has left renal hydrops, but it is unclear whether the left ureter is dilated. Common causes of renal hydrops include obstruction at the renal pelvis-ureter junction, obstruction at the ureterovesical junction, and vesicoureteral reflux. If the ureteral diameter is not dilated, it is considered to be obstruction at the renal pelvis-ureter junction, which can lead to pelvic separation and thinning of the renal parenchyma. The renal parenchyma consists of cortex and medulla. Color Doppler ultrasound generally cannot differentiate between the cortex and medulla. When assessing whether the renal parenchyma is thin, it is usually compared with the contralateral side. Additionally, besides the thickness of the renal parenchyma, the specific measurement indicators of renal hydrops mainly include the anteroposterior diameter of the renal pelvis. Based on the above color Doppler ultrasound (2.61.3 cm), it is considered that 1.3 cm may be the anteroposterior diameter, and the child's left kidney has mild hydrops. Further intravenous urography or isotope renography should be performed to determine whether surgical treatment or regular follow-up is needed.