4 year-old Male. Reason: Hx Autism History: developmental delay. There is no evidence of intracranial mass. The brain parenchyma and pituitary gland appear unremarkable. Myelination is appropriate for patient's stated age, with mild expected ill-defined FLAIR hyperintensity remaining in the terminal zones of myelination. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact.There is moderate mucosal thickening of the left maxillary sinus, the left posterior ethmoid air cells, and bilateral sphenoid sinuses with trace scattered opacification of the left greater than right mastoid air cells.
Unremarkable noncontrast MRI brain. Mild sinus inflammation, predominantly on the left side.