MedicalTerminology DB
Treatments & Supportive Care

high-energy photon therapy

Meaning of high-energy photon therapy: A type of radiation therapy that uses high-energy photons (units of light energy).

Definition of high-energy photon therapy

A type of radiation therapy that uses high-energy photons (units of light energy). High-energy photons penetrate deeply into tissues to reach tumors while giving less radiation to superficial tissues such as the skin.

Written and maintained by James Murray Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.