Fig. 1
From: Head and neck malignant lymphoma and squamous cell carcinoma discernment, is DWI conclusive?
Male patient, 65 years old, with pathologically proved oropharyngeal ML. A Coronal T1WI, B sagittal T2WI and C axial STIR, showing lobulated mass lesion (47 × 26 mm in dimensions) involving the right-sided supraglottic region, with inward bulging, significantly encroaching upon the air pathway rendering it narrowed. The lesion attains hypointense signal in T1WI with slightly hyperintense signal in T2WI and hyperintense fat suppression sequence. D, E DWI at b = 1000 s/mm2 with corresponding ADC value of 0.63 × 10–3 mm2/s. F, G DWI at b = 1500 s/mm2 with corresponding ADC value of 0.53 × 10–3 mm2/s. H, I DWI at b = 2000s/mm with corresponding ADC values of 0.42 × 10–3 mm2/s. On DWIs, the lesion is seen truly restricted with increased brightness on elevation of the b-value from 1000 to 2000 s/mm2