Diffusion- and Perfusion-Weighted Magnetic Resonance Imaging-An Alternative to Fine Needle Biopsy or Only an Adjunct Test in Preoperative Differential Diagnostics of Malignant and Benign Parotid Tumors?

These results suggest that dynamic MRI is highly accurate in the detection of malignant parotid tumors. However, taking into account the high cost and limited availability of this examination, its logical application seems to be verification of preoperative diagnoses in patients whose fine needle biopsy examination turned out to be nondiagnostic or showed pleomorphic adenoma.