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Radiation Oncology • Genitourinary Cancers
What SBRT dose would you give to a single external iliac lymph node recurrence (1 cm size) for a patient previously treated with salvage radiation to the pelvis?
Previously received 45 Gy to pelvis and a boost to prostate bed to 70.2 Gy completed 6 years ago.
Answer from: Radiation Oncologist at Community Practice
35 Gy/5 is fairly safe in the re-irradiation setting, and in our experience, it's quite effective for nodal disease.
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Answer from: Radiation Oncologist at Community Practice
Usually, 7 to 8 Gy x 5 to PTV and 8 to 9 Gy x 5 to GTV, based on OAR dose.
Comments
Radiation Oncologist at Piedmont Henry Hospital
What dose constraints/objectives would you use for...
What dose constraints/objectives would you use for...
Radiation Oncologist at NYU Grossman School of Medicine
Abusaris et al., PMID 22568625.
Abusaris et al., PMID 22568625.
Radiation Oncologist at Kansas City VA Medical Center
I would consider at least 7 Gy x 5 to PTV, and 40 ...
I would consider at least 7 Gy x 5 to PTV, and 40 ...
Answer from: Radiation Oncologist at Community Practice
This is clearly an issue that is becoming more common, especially with PSMA scans.
Several points are needed and have been mentioned:
Previous dose/fractionation scheme
Time since previous treatment
Technique and dose to the small bowel
We now have about 10 patients treated for this issue a...