Embryology During the fifth week of gestation, the urinary collecting system begins development as an outpouching from the mesonephric duct known as the ureteral bud. Contact between the bulbous portion of the ureteral bud and the metanephric blastema induces this…
Kidney and Ureter Multicystic Dysplastic Kidney Overview, Etiology, and Clinical Presentation. A multicystic dysplastic kidney (MCDK) is the most common form of cystic renal dysplasia. With high-grade obstruction or atresia of the upper urinary tract (renal pelvis and/or ureter) during…
The urinary system and the genital system are closely associated embryologically and begin to develop during the fourth week of gestation. Both develop from the intermediate mesoderm along the posterior wall of the abdominal cavity. A longitudinal elevation of the…