Related Experiment Videos
Radiation recall: a well recognized but neglected phenomenon
David Azria1, Nicolas Magné, Abderrahim Zouhair
1Department of Radiation Oncology, Val d'Aurelle-Paul Lamarque Cancer Institute, Montpellier, France.
Cancer Treatment Reviews
|September 20, 2005
Summary
Radiation recall is an inflammatory reaction in previously irradiated areas, often triggered by cancer drugs. Prompt improvement is seen with corticosteroids and stopping the causative agent.
Area of Science:
- Oncology
- Dermatology
- Pharmacology
Background:
- Radiation recall is an inflammatory reaction occurring in previously irradiated tissues.
- While skin is the most common site, other organs can also be affected.
- This reaction is triggered by various pharmacologic agents administered after radiotherapy.
Purpose of the Study:
- To review the phenomenon of radiation recall.
- To understand the underlying mechanisms and clinical presentation.
- To discuss management strategies for radiation recall.
Main Methods:
- Literature search of Medline and Cancerlit databases.
- Keywords used: "radiation", "recall", and "toxicity".
- Inclusion of English-language articles, with no year limitation.
Main Results:
- The idiosyncratic drug hypersensitivity hypothesis best explains radiation recall.
- The phenomenon can manifest days to years post-radiotherapy.
- Commonly used cancer therapeutics can induce this reaction.
- Histopathology typically shows a non-specific inflammatory infiltrate.
- Corticosteroids and NSAIDs, along with drug withdrawal, lead to rapid improvement.
Conclusions:
- Radiation recall is a rare but significant adverse event.
- Further research is needed to fully understand this phenomenon.
- Establishing a Rare Cancer Network database is proposed for data collection.