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Related Experiment Videos

Longitudinal, transverse, and diffuse nail hyperpigmentation induced by hydroxyurea.

A Hernández-Martín1, S Ros-Forteza, P de Unamuno

  • 1Fundación Hospital Alcordón, Fundación Hospital Verin, Madrid, Spain.

Journal of the American Academy of Dermatology
|July 30, 1999
PubMed
Summary
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Hydroxyurea treatment for myeloproliferative disorders can cause nail hyperpigmentation. This case highlights diverse nail changes, including longitudinal and transverse bands, and diffuse matrix darkening, beyond typical melanonychia.

Area of Science:

  • Dermatology
  • Oncology
  • Pharmacology

Background:

  • Hydroxyurea is a crucial cytostatic agent for treating myeloproliferative disorders.
  • Nail hyperpigmentation, particularly longitudinal melanonychia, is a known side effect.

Observation:

  • A patient undergoing hydroxyurea therapy presented with varied nail hyperpigmentation.
  • Observed patterns included longitudinal bands, transverse bands, and diffuse nail matrix darkening.

Findings:

  • The patient exhibited a spectrum of nail hyperpigmentation beyond the commonly reported longitudinal melanonychia.
  • This suggests hydroxyurea can induce diverse melanocytic responses in the nail unit.

Implications:

  • Understanding these varied presentations is vital for accurate diagnosis and patient monitoring.

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  • Further research may elucidate the mechanisms behind hydroxyurea-induced nail changes.