ALA-PDT successfully treated multiple cSCC in situ and AK in a patient with Epidermodysplasia verruciformis

Photodiagnosis Photodyn Ther. 2021 Sep:35:102395. doi: 10.1016/j.pdpdt.2021.102395. Epub 2021 Jun 11.

Abstract

5-aminolaevulinic acid photodynamic therapy (ALA-PDT) has emerged as a non-invasive treatment modality for premalignant and malignant skin lesions. It has the advantage of better tolerance and providing better cosmetic outcomes than conventional treatment methods. Herein, we report a patient who suffered from multiple cutaneous squamous cell carcinoma (cSCC) in situ and actinic keratosis (AK) scattered in the body's sun-exposed areas, which had led him to undergo multiple surgical resections since the age of 16. Next-generation sequencing-based on a targeted gene capture panel revealed compound heterozygous mutations c.G559A and c.G1389A in the TMC8 gene. Combined with the typical clinical manifestations and mutation analysis, the patient was diagnosed with Epidermodysplasia verruciformis (EV). Due to the multiple AK and cSCC in situ lesions, ALA-PDT was applied. After 8 courses of ALA-PDT all lesions were successfully cleared without causing any scarring. Therefore, the use of ALA-PDT treatment may constitute a very promising and effective therapeutic modality for multiple cSCC in situ and AK secondary to EV.

Keywords: ALA-PDT; Actinic keratosis; Cutaneous squamous cell carcinoma; Epidermodysplasia verruciformis; TMC8/EVER2.

Publication types

  • Case Reports

MeSH terms

  • Aminolevulinic Acid / therapeutic use
  • Carcinoma, Squamous Cell* / drug therapy
  • Epidermodysplasia Verruciformis* / drug therapy
  • Humans
  • Keratosis, Actinic* / drug therapy
  • Male
  • Membrane Proteins
  • Photochemotherapy* / methods
  • Photosensitizing Agents / therapeutic use
  • Skin Neoplasms* / drug therapy
  • Treatment Outcome

Substances

  • Membrane Proteins
  • Photosensitizing Agents
  • TMC8 protein, human
  • Aminolevulinic Acid