Severe headache after exertion, including sex Diffusion-weighted images demonstrate no areas of restricted diffusion. Normal signal intensity and morphology of the cerebral hemispheres, cerebellum, and brainstem. No intracranial hemorrhage, mass, abnormal extra-axial fluid, or edema. No abnormal enhancement of the parenchyma or leptomeninges. The ventricles and basal cisterns are normal in size and configuration. There is a partially empty sella which is slightly more prominent than on prior. This finding may be a normal variant or associated with intracranial hypertension in the appropriate clinical setting.There is a mucus retention cyst in the inferior aspect of the right maxillary sinus which appears slightly smaller than on prior study. The remaining paranasal sinuses and mastoid air cells are grossly clear. There is a diffuse nonspecific T1 hypointensity in the bone marrow without focal suspicious lesions.
1. Brain parenchyma is unremarkable.2. Partially empty sella which is more prominent than on prior. This finding can be normal variant or associated with intracranial hypertension in the appropriate clinical setting.3. Diffuse T1 hypointense marrow signal which is nonspecific and can be seen with entities such as marrow reconversion related to chronic anemia or lymphoproliferative disorders.