68 y/o M with stage I (T1N0M0) SCC of subglottic larynx.
He was treated with definitive RT alone using IMRT. The primary tumor received 70 Gy in 35 fractions. Entire larynx and low risk neck including bilateral levels III-IV, VI and superior mediastinum received 56 Gy during that time.
*This patient received fiberoptic laryngoscopy and proximal esophagogastroduodenoscopy confirming no hypopharyngeal involvement
*Paisley et al treated 42 patients (T1-T4N0) with 50-52Gy/20 to primary and first echelon nodes (EQD2 55Gy). Nodal involvement is low for subglottic primaries so 54-56Gy to N0 neck is reasonable.
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