Would you consider long course pelvic CRT after neoadjuvant chemotherapy in a patient with low lying, locally advanced rectal adenocarcinoma when you're unable to meet small bowel constraints?
Unable to meet small bowel constraints due to bowel falling in the field; posterior to the rectum and anterior to the sacrum. V15 is 300 cc and lowering overall dose to 41.4/23 did not change the parameter.
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Is it safe to offer long course chemo radiation for locally advanced rectal cancer when high small bowel volume in field ?
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Radiation Oncology · Henry Ford Health System
Answered on
I would definitely offer long course chemoradiation in this setting. The V15 small bowel is not a constraint that should be used to determine treatment. The only absolute constraint I use for pelvic chemoradiation for rectal cancer is a small bowel maximum dose of 55 Gy. The 55 Gy maximum dose const...
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