What is your radiotherapy plan for stage IVA (cT4) cervical SCC with the tumor completely obliterating the bladder trigone?
Will you pursue brachytherapy? If not, what would be your EBRT boost details? (target, dose/fractionation, sequential/SIB)?
Answer from: Radiation Oncologist at Community Practice
I would follow the same schedule.
After concurrent chemo RT, I would use HDR brachy with a hybrid applicator to achieve a D90 of 85 Gy or above to the HR-CTV and avoid any hotspot in the bladder wall.
Part of the bladder wall in the trigone area receives a therapeutic dose.