Fig. 1. An early stage tumor (gliomas II). The astrocytoma is located in the left insular lobe and compresses the internal capsule (Patient 5). However, there is no HSIC (left upper figure). The pyramidal tract is traced from the posterior limb of the internal capsule. The inserted table shows that ADC is higher than that of normal subject, but FA is similar. ADC, apparent diffusion coefficient; FA, fractional anisotropy; FLAIR, fluid attenuated inversion recovery; HSIC, high signal change at the level of the internal capsule in FLAIR magnetic resonance imaging.