Fig. 7
From: Brain MR findings in patients treated with particle therapy for skull base tumors
MRI performed 18 months after 65.6 Gy carbon ion therapy in a patient with sinonasal adenoid cystic carcinoma. Axial T2-weighted image (a) shows a subcortical white matter and gray matter lesion in right polar and mesial temporal regions. Axial post contrast T1-weighted image (b) shows the presence of inhomogeneous contrast-enhancing lesion. Diffusion imaging documented the presence of foci of restricted diffusion within the medial part of the lesion appearing as hyperintense areas in DWI-b0 (c) and DWI-b1000 images (d) and hypointense on the corresponding ADC map (e) (yellow arrows)