Fig. 2
From: Head and neck malignant lymphoma and squamous cell carcinoma discernment, is DWI conclusive?
Female patient, 45 years old, with pathologically proved tongue squamous cell carcinoma. A, B Axial T1WI and T2WI showing large ill-defined mass lesion (measuring 47 × 23 mm in dimensions) seen involving the left lateral aspect of the tongue, with no infiltration of the surrounding fat planes, respecting the tongue’s borders. The lesion attains hypointense signal in T1WI with heterogeneous high signal in T2WI. C, D DWI at b = 1000 s/mm2 with corresponding ADC value of 1.10 × 10–3 mm2/s. F, G DWI at b = 1500 s/mm2 with corresponding ADC value of 0.95 × 10–3 mm2/s. H, I DWI at b = 2000s/mm with corresponding ADC values of 0.86 × 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