Clinical question: Rule out underlying structural lesion. Signs and symptoms: Headache awakening from sleep. Pre and post enhanced brain MRI:No acute intracranial process and negative diffusion weighted images.There is normal anatomical morphology and development of brain parenchymal. There is normal signal intensity of brain parenchyma on all MRI sequences.Unremarkable cerebral cortex, cortical sulci, ventricular system, CSF spaces and brain myelination.No detectable abnormal parenchymal or leptomeningeal enhancement.Unremarkable images through the calvarium and orbits without abnormal enhancement.All paranasal sinuses and bilateral mastoid air cells and middle ear cavities demonstrate normal pneumatization signal patterns.
Unremarkable pre and post enhanced brain MRI as detailed above.