FIG 3. A 56-year-old man presented with a neck mass that had rapidly enlarged over several months. Malignancy was suspected because of heterogeneity, with solid components seen on MR images and sonograms (not shown). Contrast material was not administered. The lesion proved to be inflammatory changes superimposed on a TDC, with no malignancy found at resection.

A, Sagittal T1-weighted MR image shows a heterogeneous mass of slightly hyperintense signal.

B, Axial T2-weighted image shows hyperintense but heterogeneous signal within this complex lesion.