| Sign In to gain access to subscriptions and/or personal tools. |
DOI: 10.1177/8756479306296948 Prenatal Diagnosis of Posterior Urethral ValvesChildren's Hospital Central California, 9300 Valley Children's Place, Madera, CA 93638; guthriej{at}hotmail.com Posterior urethral valves are a urologic deformity involving a narrowing of the prostatic portion of the male urethra. This causes a bladder outlet obstruction. The sonographic criteria include hydronephrosis, bilateral ureterectasis, and enlarged bladder, with a "keyhole" appearance in the region of the obstruction of the prostatic urethra. Varying degrees of oligohydramnios will be present due to the inability of the fetus to release urine. Additional findings may include pulmonary hypoplasia due to lack of amniotic fluid. In severe cases, the bladder may rupture and cause urinary ascites within the fetal pelvis. A case study demonstrating this condition is presented.
Key Words: posterior urethral valves bladder outlet obstruction hydronephrosis pulmonary hypoplasia oligohydramnios
|