Fig. 1From: Morphologic CT and MRI features of primary parotid squamous cell carcinoma and its predictive factors for differential diagnosis with mucoepidermoid carcinomaA 70 years old patient with primary parotid SCC in the right parotid gland. Axial T2WI (A) and T1WI (B) show a well-defined mass in the superficial part of the right parotid gland exhibiting a hypointense rim with central hyperintensity on T2WI, hypointense on T1WI (arrow). Contrast-enhanced axial (C) and coronal (D) T1WI show heterogeneous ring enhancement with severe central necrosis (arrow)Back to article page