27 years, Male, insomnia. Brain parenchyma appears within normal limits. No parenchymal signal abnormality. No intracranial mass or mass-effect. No diffusion abnormality. No intracranial hemorrhage. The ventricles are within normal limits in size and configuration. No abnormal parenchymal or meningeal enhancement. Major flow-voids are preserved.Sella and orbits are grossly within normal limits. There is a small right maxillary sinus mucus retention cyst and trace maxillary sinus mucosal thickening. Paranasal sinuses and mastoid cells are otherwise clear. Bone marrow signal and extracranial soft tissues are within normal limits.
MRI of the brain is within normal limits.