Differentiation of Benign and Malignant Parotid Gland Tumors with MRI and Diffusion Weighted Imaging.

Mean ADC values when considered with morphological features may be accessible methods to distinguish benign and malignant PGTs, also ADC values and T2 signal intensity may be useful for differentiating pleomorphic adenomas from Warthin tumors, thereby reducing the number of biopsies and thus complications.