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Related Experiment Video

Updated: Mar 23, 2026

Stimulation of Stem Cell Niches and Tissue Regeneration in Mouse Skin by Switchable Protoporphyrin IX-Dependent Photogeneration of Reactive Oxygen Species In Situ
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[Cutaneous changes in long-standing erythropoietic protoporphyria].

L Meister1, E Valesky2, F Ochsendorf2

  • 1Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Deutschland. laura.meister@kgu.de.

Der Hautarzt; Zeitschrift Fur Dermatologie, Venerologie, Und Verwandte Gebiete
|April 8, 2016
PubMed
Summary

Erythropoietic protoporphyria causes extreme sun sensitivity. A 60-year-old man with this condition developed lichenoid papules, successfully treated with electrocautery and CO2 laser vaporization.

Keywords:
Carbon dioxide laserElectrocauteryPapulesPhotosensitivitySun exposure

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Area of Science:

  • Dermatology
  • Genetic Disorders

Background:

  • Erythropoietic protoporphyria (EPP) is an inherited disorder characterized by severe photosensitivity.
  • Patients experience immediate, painful reactions to sunlight, including erythema, edema, and wheals.

Observation:

  • A 60-year-old male patient with childhood-onset EPP presented with chronic, lichenoid papules on sun-exposed skin.
  • These papules represent an unusual cutaneous manifestation in EPP.

Findings:

  • The patient's lichenoid papules were successfully treated using a combination of electrocautery and carbon dioxide (CO2) laser vaporization.
  • This indicates a viable therapeutic option for this specific EPP complication.

Implications:

  • The findings suggest that electrocautery and CO2 laser vaporization can be effective in managing chronic cutaneous lesions in EPP patients.
  • This case expands treatment options for managing the diverse clinical manifestations of erythropoietic protoporphyria.