Related Experiment Video
Updated: Jun 12, 2026
An In Vitro Approach to Photodynamic Therapy
Published on: August 17, 2018
[Studies of methyl aminolevulinate photodynamic therapy for actinic keratosis]
M Fernández-Guarino1, A Harto, P Jaén
1Hospital Universitario Ramón y Cajal, Universidad de Alcalá de Henares, Madrid, España. montsefdez@msn.com
Abstract:
Photodynamic therapy (PDT) for the treatment of actinic keratosis has been shown to be effective and safe in large clinical trials published in the last 5 years. However, evidence has since emerged that raises questions or that introduces new issues, such as the management of field cancerization, fluorescence diagnosis and results in transplant recipients. There also remains a need for more studies comparing PDT to additional treatments. We review the literature on these new topics in PDT.
Insights
Photodynamic therapy (PDT) is effective for actinic keratosis. Recent evidence addresses field cancerization, fluorescence diagnosis, and outcomes in transplant recipients, highlighting areas for further research and treatment comparisons.
Area of Science:
- Dermatology
- Oncology
- Photomedicine
Background:
- Photodynamic therapy (PDT) is a well-established treatment for actinic keratosis.
- Recent clinical trials confirm PDT's efficacy and safety for actinic keratosis.
- Emerging evidence introduces new considerations for PDT application.
Purpose of the Study:
- To review recent literature on photodynamic therapy for actinic keratosis.
- To address new issues including field cancerization and fluorescence diagnosis.
- To examine PDT outcomes in specific patient populations, such as transplant recipients.
Main Methods:
- Literature review of studies published within the last five years.
- Analysis of evidence concerning field cancerization management.
- Evaluation of fluorescence diagnosis techniques in PDT.
- Review of PDT results in immunocompromised patients.
Main Results:
- PDT remains a safe and effective treatment for actinic keratosis.
- New challenges include managing field cancerization and interpreting fluorescence data.
- Transplant recipients may have different responses to PDT.
- Comparative studies of PDT versus other treatments are still needed.
Conclusions:
- Photodynamic therapy is a valuable tool for actinic keratosis treatment.
- Further research is required to optimize PDT for field cancerization and specific patient groups.
- Comparative effectiveness studies are essential to guide treatment selection.
