Dose Escalation Versus Standard in Laryngopharyngeal Cancers

"Boost Target Volume (BTV): The PET CT GTV (thresholding at 40% of SUV max) with a 3mm margin will form the BTV.~CTV1: A 3mm area around the BTV avid primary or 2mm area around the node will form the CTV1.~CTV 2: This (CTV 2) includes the area around the primary or nodal levels at risk of harbouring microscopic primary or microscopic nodal metastatic disease and not already included in CTV1.~Planning Target Volume: PTV - A margin of 5mm will be added to each of the CTV to obtain the PTV.~BTV receives 73.5Gy in 30 fractions. PTV 1 receives 63Gy in 30 fractions. PTV 2 receives 54 Gy in 30 fractions.~All patients receive concurrent platinum chemotherapy."

"CTV 1 includes 6mm isotropic margin around the entire PET-CT avid (thresholding at 40% of SUV max) larynx/ hypopharynx /oropharynx and 5mm isotropic margin around nodes.~CTV 2: This (CTV 2) includes the area around the primary or nodal levels at risk of harbouring microscopic primary or microscopic nodal involvement, or at risk nodal areas, and not already included in CTV1.~Planning Target Volume: PTV - A margin of 5mm will be added to each of the CTV to obtain the PTV.~PTV 1 receives 66Gy in 30 fractions. PTV 2 receives 54 Gy in 30 fractions.~All patients receive concurrent platinum chemotherapy."