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Combined external and internal irradiation of brain tumors and central nervous system metastases is undergoing early clinical trials at the University of Minnesota.
Animal studies as well as preliminary clinical impressions give evidence this new regimen has value, Stephen A. Kieffer, MD, told the Society for Pediatric Radiology.
Posterior fossa tumors, such as medulloblastoma, commonly foment metastases in the lower spinal spaces, the Minneapolis radiologist said at the San Francisco sessions. Proper therapy presents "a true therapeutic dilemma."Medulloblastoma is subject to long-term control by radiation, but
Dual Therapy May Erase Metastases. JAMA. 1966;198(3):41–42. doi:10.1001/jama.1966.03110160015004