Fig 1. ADC and FA measurements in a 22-year-old man with pathologically confirmed lymphoma in the right temporo-occipital region. A, Axial contrast-enhanced T1-weighted MR image (781/8.1) shows an enhancing mass in the right temporo-occipital region. There are enhancing nodules along the right frontal ependymal surface. There is a rim-enhancing nodule posteromedial to the main mass; cystic change or necrosis of the tumor is considered. One ROI is in the enhancing tumor area for measurement of ADC and FA values, and another ROI is at a corresponding site in the contralateral NAWM. On FA (B) and ADC (C) maps, the ROIs in A are superimposed.