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Our patient's tongue during week three of radiotherapy (left) and three months following completion of radiotherapy (right)
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During the third week of radiotherapy he developed hyperpigmented lesions on his oral tongue, as shown in Figure 1. The hyperpigmented lesions began to resolve spontaneously following completion of radiotherapy and had resolved completely by three months (Figure 1).
Axial (left) and sagittal (right) dosimetric distribution of radiotherapy delivered to the oral cavity in our patient's radiotherapy plan. Contours: PTV (red), oral cavity (cyan)
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The dosimetric distribution of radiotherapy delivered to the oral cavity is illustrated in Figure 2.