4D Ultrasound – Obstetric Ultrasound – Congenital Hydronephrosis in 4D Scan | Panorama Scan

4D Ultrasound – Obstetric Ultrasound – Congenital Hydronephrosis in 4D Scan | Panorama Scan: 4D Ultrasound - Obstetric Ultrasound - Congenital Hydronephrosis in 4D Scan. Hydronephrosis is a dilatation of the renal pelvis and calyces due to obstruction of the urinary tract and the junction of the renal pelvis and the ureter. It is bilateral in 30% and associated with other anomalies of the urinary tract (27%), as well as other extra-urinary systems (19%). Antero-posterior renal diameter of more than 10 mm or a ratio of more than 50% of the maximum transverse pelvic diameter/renal diameter is suggestive of hydronephrosis. Mild hydronephrosis is mild enlargement of the renal pelvis, branching infundibula, and calyces. In severe hydronephrosis, the dilatation is severe and appears as a large, unilocular cystic fluid collection. A severe degree of bilateral hydronephrosis is seen in this 2D scan with attenuation of the renal parenchyma. There is a monolocular cystic mass occupying the lower part of the abdominal cavity and close to the fetal spine. The mass is a hydronephrosis