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2007-03-19-13 Posterior urethral valves © Cuillier www.thefetus.net/

Posterior urethral valves 

Fabrice Cuillier, MD*, JL Alessandri, MD**.

*

Department of Gynecology, Felix Guyon Hospital, 97400 Saint- Denis, Reunion Islands, France; tel.: 0262 90 55 22; fax: 0262 90 77 30;

**

Department of Neonatology, Hospital Felix Guyon, 97400 Saint-Denis, Reunion Islands, France.

 

Case report

A 30 year-old woman scanned ate 19, 23, 28, 31, and 33 weeks of gestation. At 19th week we discovered a distended thick-walled bladder (images 1A, 1B, 1C, 1D). The amount of amniotic fluid was normal. There was no evidence of pyelectasis or urethral dilatation at 23rd week (images 3A, 3B). At 31st week the pyelectasis appeared with slight progression during the rest of the pregnancy. We assumed the diagnosis of posterior urethral valves.

The baby was delivered at 37th week of gestation (3000 g). Postnatally the diagnosis of posterior urethral valves was confirmed and repaired. The postoperative course was normal.

Images 1A, 1B: 2D ultrasonography; 23rd week of gestation - transverse planes showing dilated, thick-walled urinary bladder.

 

Images 1C, 1D: 2D color Doppler ultrasonography; 23rd week of gestation - transverse planes showing dilated, thick-walled urinary bladder.

 

Images 2A, 2B: 2D ultrasonography; 23rd week of gestation - parasagittal sections through fetal kidneys without pyelectasis.

 

Images 3A, 3B: 2D ultrasonography; 31st week of gestation - transverse plane through dilated, thick-walled urinary bladder (left; image 3A); and parasagittal planes through fetal kidneys showing mild pyelectasis.

 

Images 4A, 4B: 2D ultrasonography; 33rd week of gestation - parasagittal planes through fetal kidneys showing progressed pyelectasis.

 

 

 

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