Fig. 2
From: Synchronous bilateral multifocal basal cell adenomas of the parotid gland—a case report
MRI of bilateral multifocal parotid basal-cell adenomas. The examination shows heterogeneous lesions, with central cystic areas, partially with higher protein content and signs of bleeding, and peripheral solid components (A. T1-weighted axial image, B. T2-weighted axial image, C. T2-weighted coronal image and D. T2-weighted fat-saturated axial image). Solid components of the tumours present vivid enhancement post-gadolinium-based contrast agent (E. contrast-enhanced T1-weighted fat-saturated axial image) and the time-intensity curves obtained on the basis of dynamic contrast-enhanced sequence show a continuous uptake of the contrast agent suggestive of adenomas (F). Tumors did not show signs of diffusion restriction with ADC values of approximately 1.48 × 10−3 mm.2/s (G. diffusion-weighted axial image, b 1000, H. ADC map)