14 years, Male, delusional behavior, paranoia. MRI of the brain is within normal limits. No intracranial mass or mass effect. Ventricles and sulci are within normal limits. No focal parenchymal signal abnormality is appreciated. No evidence of ischemia or hemorrhage. Major flow-voids are preserved. No abnormal parenchymal or meningeal enhancement. There is opacification of the right anterior ethmoid air cell with mild osseous remodeling. Right frontal sinus is under pneumatized. Mastoid air cells are clear. Sella and orbits are grossly within normal limits. Bone marrow signal and extracranial soft tissues are within normal limits.
1. MRI of the brain is within normal limits. 2. Opacification of the right anterior ethmoid air cells with mild smooth osseous expansion suggestive of mucocele, as seen on recent CT.