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Polythelia: still a marker of urinary tract anomalies in children?
Pietro Ferrara1, Valentina Giorgio, Ottavio Vitelli
1Department of Pediatrics, Catholic University, A. Gemelli Hospital, Rome, Italy. pferrara@rm.unicatt.it
Insights
Children with supernumerary nipples (SNN) show a higher incidence of kidney and urinary tract (K/UT) anomalies. Further investigation of K/UT is recommended for children diagnosed with SNN.
Area of Science:
- Pediatric Nephrology
- Clinical Genetics
- Developmental Biology
Background:
- Supernumerary nipples (SNN), or polythelia, are common mammary tissue malformations.
- The association between SNN and other anomalies is often debated.
- Kidney/urinary tract (K/UT) anomalies encompass functional disorders, malformations, and diseases.
Purpose of the Study:
- To investigate the association between SNN and K/UT anomalies in children.
- To determine if SNN correlates with an increased risk of K/UT abnormalities.
Main Methods:
- A case-control study design was employed.
- The study included 166 children with SNN (case group) and 182 children without SNN (control group).
- Participants were recruited from a Pediatric Nephrology Unit and a general Pediatrics Department.
Main Results:
- A significantly higher prevalence of SNN was observed in children with K/UT anomalies (6.62%) compared to the control group (1.09%).
- Statistical analysis indicated a significant difference between the groups (p<0.05).
Conclusions:
- The study reveals a notable incidence of K/UT anomalies in children with SNN.
- Routine screening for K/UT anomalies is advised for pediatric patients presenting with SNN.
Objective:
Supernumerary nipples (SNN), or polythelia, are the most common form of the accessory mammary tissue malformation. The frequency of this condition ranges from 0.2% to 5.6% depending on various factors. This condition is associated with several anomalies, although this association is often controversial. The aim of this study was to evaluate the association between SNN and kidney/urinary tract (K/UT) anomalies, where anomalies is taken to mean functional disorders, malformations and diseases.
Material And Methods:
A case-control study was performed. The study evaluated 166 children (case group) referred to the Pediatric Nephrology Unit of the Department of Pediatrics of the Catholic University of Rome and 182 children (control group) admitted to the Department of Pediatrics because of pathologies not involving the urinary tract.
Results:
There were 11 children with SNN in the case group, and only two patients in the control group (6.62% vs 1.09%, p<0.05).
Conclusion:
The results show a high incidence of K/UT anomalies in children with SNN, and therefore K/UT should be investigated in this specific population.
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