On MRI sequences this soft tissue mass appears ill-defined measuring 38 x 35 x 24 mm of intermediate signal on T1, low signal on T2 with a central area of high signal on T1 and T2, attenuated on T1 fat sat, invading the platysma muscle and probably the masseter muscle. The postcontrast sequences show a heterogeneous enhancement.
Enlarged right upper cervical lymph node at level II showing heterogeneous enhancement and central necrosis, measuring 18 x 16 mm and 20 x 15 mm, as well as an intraparotid lymph node at the mandibular angle measuring 12 x 10 mm.
Normal appearance of the left parotid and submandibular glands.