Fetal Kidney Cyst Ultrasound. Infantile or serous renal cyst. The lower right shows a 3 d ultrasound image of the fetal renal cyst.

Transverse ultrasound scan of fetal abdomen shows left kidney has multiple cysts without connection between them and without residual normal parenchyma. Note that in the upper left image the cyst is not visible. A large simple cyst in the left kidney.
The lower right shows a 3 d ultrasound image of the fetal renal cyst.
Sp fetal spine. In the absence of associated anatomical or chromosomal abnormalities the majority of cysts will resolve during pregnancy without any sequelae. Note that in the upper left image the cyst is not visible. The location can be better appreciated on the ct scan lower right panel.