Craniospinal Radiation
Also written as: CSI — Craniospinal Irradiation
Radiation therapy technique that treats the entire central nervous system pathway from brain to spinal cord.
Full Definition
Craniospinal radiation is a specialized radiotherapy technique that delivers radiation to the entire central nervous system, including the whole brain and complete spinal cord. This treatment is primarily used for tumors with high risk of cerebrospinal fluid dissemination, such as medulloepithelioma, embryonal tumors, and some high-grade ependymomas. The technique requires sophisticated treatment planning to ensure adequate dose coverage while minimizing toxicity to organs such as the thyroid, heart, and developing skeleton in pediatric patients.
Usage
Usage note: Specify total dose and fractionation when documenting treatment plans.
In Context
- "The treatment plan included craniospinal radiation followed by a boost to the primary tumor site." — Radiation therapy summary
- "Craniospinal radiation was recommended due to the high risk of cerebrospinal fluid seeding." — Multidisciplinary conference