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Posterior urethral valves in successive generations
K M Hanlon-Lundberg1, M S Verp, G Loy
1Department of Obstetrics and Gynecology, University of Chicago, IL 60637.
Insights
Posterior urethral valves (PUV), a common cause of urinary obstruction in infant males, show a potential hereditary link. This report details the first observed instance of PUV in successive generations.
Area of Science:
- Pediatric Urology
- Medical Genetics
- Prenatal Diagnosis
Background:
- Posterior urethral valves (PUV) are a significant cause of bladder outlet obstruction in male infants.
- While familial occurrence has been noted, the genetic basis of PUV remains largely uncharacterized.
- Antenatal diagnosis of PUV via ultrasound is possible, aiding early intervention.
Observation:
- This study documents a rare case of antenatally diagnosed posterior urethral valves.
- The affected fetus had a father and paternal uncle previously treated for PUV in childhood.
- This represents the first reported instance of PUV diagnosed in consecutive generations.
Findings:
- The findings suggest a potential inherited predisposition to posterior urethral valves.
- This case highlights the importance of family history in evaluating congenital urinary tract anomalies.
- Further research into the genetic factors of PUV is warranted.
Implications:
- Understanding the genetic transmission of PUV can improve risk assessment for families.
- Early diagnosis and intervention for PUV can prevent long-term renal damage.
- This case may prompt further investigation into genetic counseling for families with a history of PUV.
Abstract:
Posterior urethral valves (PUV) are a frequent cause of urinary tract obstruction in infant males and may be diagnosed by antenatal ultrasound. PUV have been observed in siblings and in identical twins. However, genetic factors in PUV are poorly understood. In this article, we report the occurrence of PUV diagnosed antenatally in a fetus whose father and paternal uncle were both treated for PUV in childhood. This is the first reported case of PUV that we are aware of occurring in successive generations.