A large right temporal lobe mass is present, predominantly cystic, is noted. There is extensive irregular enhancement, with solid components demonstrating reduced ADC values suggestive of high cellularity.
Importantly the cortex of the temporal pole is also involved.
Conclusion
Features are most consistent with a high grade cystic glioma (glioblastoma). Cystic metastasis could have similar appearance, however involvement of the cortex makes this much less likely.