Is SRS or 3-5 fraction SRT appropriate for cystic brain metastases?
Are there treatment planning considerations that are different for a large cystic lesion as compared to a solid metastasis?
Answer from: Radiation Oncologist at Academic Institution
Optimal management of large cystic metastatic brain lesions remains an area of high controversy and debate. One approach would be to aspirate the cyst followed by radiosurgery. Pan and colleagues1 reported that tumors with large cystic component (>10 ml) did not appear to be effectively controlle...
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Answer from: Radiation Oncologist at Academic Institution
The differing view of the cystic metastasis has been discussed. UCSF published on worse control with cystic lesions and I swear this is brought up at almost every stereotactic conference. To my knowledge this has not been shown in any other retrospective reviews (including in subsequent updated anal...