Imperforate Hymen Causing Bilateral Hydroureteronephrosis in an Infant with Bicornuate Uterus
Figure 1
Pelvic US. (a) Transverse view shows a large well-defined cystic mass with internal echoes, which could easily be misinterpreted as overly distended urinary bladder. Note the bilateral ureteral dilatation. (b) Insertion of a Foley catheter makes it clear that the cystic mass is separate from the urinary bladder which is severely compressed and therefore hard to detect on ultrasound.
