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Egyptian Journal of Radiology and Nuclear Medicine
Fig. 1 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 1

From: Post-treatment benign changes versus recurrence in non-lymphoid head and neck malignancies: can diffusion-weighted magnetic resonance imaging end up the diagnostic challenge?

Fig. 1

Pathologically proven recurrent squamous cell carcinoma of the tongue following surgical resection and adjuvant radiotherapy. a Axial fat-saturated T2-weighted image (T2WI) showing an ill-defined lesion of intermediate-to-high signal intensity at the operative bed (right side of the tongue). b Axial fat-saturated T1-weighted image (T1WI) post-contrast sequence showing faint, ill-defined, inhomogeneous enhancement of the lesion. c Diffusion-weighted imaging (b1000) revealing the hyperintense pattern of the lesion. d Apparent diffusion coefficient (ADC) map revealing the hypointense pattern of the lesion, with a mean ADC value of 1.21 × 10−3/mm2 suggestive of tumour recurrence

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