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Egyptian Journal of Radiology and Nuclear Medicine
Fig. 2 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 2

From: Diffusion-weighted magnetic resonance imaging (DWMRI) of head and neck squamous cell carcinoma: could it be an imaging biomarker for prediction of response to chemoradiation therapy

Fig. 2

A 59-year-old male patient with right sided transglottic laryngeal SCC (T4aN0M0) treated by radiotherapy. a–e Axial pretreatment MR images. a T2WI with fat suppression, b non-contrast T1WI, c post-GAD T1WI with fat suppression, d b-1000 TSE-DWI, e the corresponding ADC map, all showed moderately hyperenhancing T2 hyperintense right sided transglottic soft tissue mass with restricted diffusion (ADC = 0.82 × 10−3 mm2/s), f–h axial midtreatment MR images performed 2 weeks after start of radiotherapy. f T2WI with fat suppression. g b-1000 TSE-DWI, h the corresponding ADC map, all showed mild regression in size of the tumor with elevation of ADC value (1.26 × 10−3 mm2/s). i–k Axial MR images 6 weeks after end of radiation therapy. i T2WI, j b-1000 TSE-DWI, k the corresponding ADC map, revealed local control and complete disappearance of the tumor without diffusion restriction. Clinical/radiological follow-up for 1 year after end of treatment showed no development of any new mass or complaint

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