TY - JOUR T1 - Carcinoma Ex Pleomorphic Adenoma of the Parotid Gland: Radiologic-Pathologic Correlation with MR Imaging Including Diffusion-Weighted Imaging JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 865 LP - 867 DO - 10.3174/ajnr.A0974 VL - 29 IS - 5 AU - H. Kato AU - M. Kanematsu AU - K. Mizuta AU - Y. Ito AU - Y. Hirose Y1 - 2008/05/01 UR - http://www.ajnr.org/content/29/5/865.abstract N2 - SUMMARY: We present 4 cases of carcinoma ex pleomorphic adenoma of the parotid gland. In 3 of the 4 cases, diffusion-weighted and apparent diffusion coefficient (ADC) mapping images clearly revealed carcinoma as a hypercellular area with low ADC values and pleomorphic adenoma as a hypocellular area with high ADC values. Diffusion-weighted images demonstrated well complex tissue components in carcinoma ex pleomorphic adenoma, which may be useful for the diagnosis of this disease. ER -