Figure 2.

Basal cell adenoma in the right parotid gland of a 49-year-old female. (a) On short-inversion-time inversion recovery image [3000/40 (repetition time/echo time), axial plane], the deep lobe tumour shows heterogeneous high intensities (arrows). (b) On T₁ weighted image (560/8, axial plane), the tumour shows isointensity for muscle (arrows). The apparent diffusion coefficient value of the tumour component is 1.31 × 10⁻³ mm² s⁻¹. (c and d) Fat-suppression contrast-enhanced T₁ weighted image (540/8.2, axial plane) and time–intensity curve (TIC) on enhanced dynamic study, with the tumour showing heterogeneous enhancement (arrows) with TIC peaks later than 120 s (Type C). (e and f) Loupe and light microscopy (original magnification, ×100) images show the solid component with anastomosing cords of basaloid cells and rich intervening stroma (***).