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. 2020 Jun 22;12(6):1651. doi: 10.3390/cancers12061651

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Exemplification of Unilateral neck irradiation case. Unilateral neck irradiation treatment plan for T1N0 squamous cell carcinoma of the right supraglottic larynx, after SPECT/CT with peritumoral 99mTc-nanocolloid injection for lymph drainage mapping. Prescription dose 70 Gy in 35 fractions to high risk PTV. (A) Delineation of GTV, high risk CTV/PTV (red), intermediate (blue), and low (green) utilizing 5 mm uniform expansion to render PTV’s. (B) VMAT treatment planning technique with partial arcs delivered via simultaneously integrated boost method. Dose color wash distribution.