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Cutaneous porphyrias in China.

K H Liao1

  • 1Institute of Dermatology, Shanghai Medical University, China.

The Journal of Dermatology
|June 1, 1991
PubMed
Summary

This study reviewed 145 Chinese cutaneous porphyria cases, finding Erythropoietic Protoporphyria (EPP) is most common, unlike global trends. Early EPP diagnosis and liver disease as a factor in PCT and EPP complications were highlighted.

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Area of Science:

  • Dermatology
  • Hepatology
  • Genetics

Background:

  • Cutaneous porphyrias are rare genetic disorders affecting the skin.
  • Prevalence and clinical presentation vary geographically.
  • Data on porphyrias in China is limited.

Purpose of the Study:

  • To review the prevalence of cutaneous porphyrias in China.
  • To compare Chinese prevalence data with global trends.
  • To discuss diagnostic and clinical aspects.

Main Methods:

  • Retrospective review of 78 cases from China.
  • Inclusion of 67 previously reported cases (1979-1990).
  • Analysis of total 145 cases.

Main Results:

  • Erythropoietic Protoporphyria (EPP) accounted for 75.2% (109 cases).
  • Porphyria Cutanea Tarda (PCT) comprised 19.3% (28 cases).
  • Observed prevalence differs significantly from other regions.

Conclusions:

  • EPP is the predominant cutaneous porphyria in China.
  • Early diagnosis of EPP via RBC protoporphyrin testing is crucial.
  • Hepatobiliary complications are noted, with liver disease as a potential trigger in China.

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