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Novel Insights Malalignment or Retronychia: Which Comes First?

André Lencastre¹, Bertrand Richert²

¹Department of Dermatology, Hospital de Cascais and Hospital da Luz, Lisboa, Portugal.

Skin Appendage Disorders

|February 6, 2025

Summary

This summary is machine-generated.

Chronic retronychia in children may resemble congenital nail malalignment due to microtrauma. This case highlights the link between retronychia and acquired great toenail malalignment in a pediatric patient.

Keywords:

Congenital great toenail malalignment Disappearing nail bed Nail unit remodeling Polymeronychia Retronychia

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Area of Science:

Podiatry
Dermatology
Pediatric Orthopedics

Background:

Chronic retronychia and congenital great toenail malalignment share clinical similarities.
Both conditions involve altered nail growth patterns potentially linked to microtrauma.

Purpose of the Study:

To investigate the relationship between chronic retronychia and acquired great toenail malalignment.
To present a pediatric case of chronic retronychia potentially caused by distal phalanx deviation.

Main Methods:

Clinical case presentation of a 2-year-old girl with left great toenail changes.
Assessment of nail growth abnormalities and potential contributing factors like distal phalanx alignment.

Main Results:

The patient presented with chronic retronychia, suspected to be caused by lateral deviation of the distal phalanx.
Conservative management was recommended, but early signs of retronychia complications were observed.

Conclusions:

This case suggests a potential link between chronic retronychia and acquired great toenail malalignment.
The findings underscore the importance of considering microtrauma and underlying structural issues in pediatric nail disorders.