71 y/o M with 100 pack-year smoking history presented with Stage IVA (T4aN0M0) SCC of the L pyriform sinus with extension to the posterior pharyngeal wall and invasion of thyroid cartilage.
He was treated with definitive chemoradiation using IMRT and concurrent cisplatin. The primary tumor received 70 Gy in 35 fractions over 6 weeks. The high risk elective neck LN including bilateral levels III, IV, V and VI received 63 Gy and the low risk elective neck LN including bilateral level II, lateral RP (VIIa) and retrostyloid space (VIIb), and low level IV, received 56 Gy during this time.
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