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Extensive partial unilateral lentiginosis.

R Romiti1, Harnache JDI, C F Neto

  • 1Department of Dermatology, University of São Paulo, Brazil.

The Journal of Dermatology
|October 18, 2001
PubMed
Summary
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Partial unilateral lentiginosis is a rare skin condition causing numerous lentigines on one side of the body. This report details two cases with extensive skin involvement but no systemic abnormalities.

Area of Science:

  • Dermatology
  • Pigmentary Disorders
  • Medical Genetics

Background:

  • Partial unilateral lentiginosis is a rare congenital pigmentary disorder.
  • It is characterized by the unilateral distribution of multiple lentigines.
  • Histological examination typically reveals a lentigo.

Observation:

  • This report describes two young male patients presenting with an extensive form of partial unilateral lentiginosis.
  • The lentigines affected the skin unilaterally and were widespread.
  • No associated systemic abnormalities were detected in either patient.

Findings:

  • The two cases presented with extensive unilateral skin pigmentation consistent with partial unilateral lentiginosis.
  • Histopathological examination confirmed the diagnosis as lentigo.

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  • Comprehensive medical evaluations ruled out any systemic involvement.

    • Implications:

    • This case series expands the understanding of the clinical spectrum of partial unilateral lentiginosis.
    • It highlights the importance of thorough dermatological examination to identify such rare conditions.
    • Further research may explore potential genetic factors or triggers for extensive unilateral presentations.