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. 2015 Sep 8;5:13919. doi: 10.1038/srep13919

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(A) Pretreatment transverse T1-weighted spin-echo MRI image showing a 10 mm nonspecific hypointense nodule within the right parotid gland. (B) Isodose curves for intensity-modulated radiotherapy: red, 70 Gy; green, 60 Gy; light blue, 45 Gy; blue 23 Gy. (C) Transverse T1-weighted spin-echo MRI image 3 months after radiotherapy showing the lesion within the right parotid gland was controlled. (D) Transverse T1-weighted spin-echo MRI image 32 months after radiotherapy showing a 12 mm nonspecific hypointense nodule within the right parotid gland, which was pathologically confirmed as squamous carcinoma after surgery.