Question
At 30 weeks of embryonic development, the newborn was found to have bilateral kidney pelvic separation, with a left side of 1.1 millimeters and a right side of 0.6 millimeters. Nine hours after birth (with one urination in between, the time of urination was unknown), a Doppler ultrasound examination showed that the right kidney pelvic separation had disappeared, while the left kidney pelvic separation was 0.24 millimeters. The mother of the child had the following conditions during pregnancy: In 2007, there was a medical abortion; in January 2009, there was a full-term fetus stillbirth; in April 2009, she was pregnant again, and anemia due to iron deficiency was detected in May; from late July to early August, there was a placental abruption, which disappeared after taking progesterone; at 1:45 AM on December 1, 2009, she gave birth prematurely. The attending physician after delivery indicated that there was placental adhesion and remnants of placenta in the uterus. Does the newborn’s kidney pelvic separation indicate congenital kidney disease?
Answer
Based on your detailed information and ultrasound examination, it is considered that there should be no congenital developmental anomalies. The kidney pelvis and fat tissues are referred to as the collecting system in ultrasound or Doppler ultrasound and appear as high echo. Generally, an ultrasound examination analyzes whether there is any problem by measuring the distance of low echo (liquid) within the collecting system.