25 years, Female, evaluate for posterior circulation stroke. Dizziness and giddiness. Sickle cell disease. Brain parenchyma appears within normal limits. No restricted diffusion to suggest acute ischemia. No intracranial hemorrhage. No parenchymal signal abnormality. No intracranial mass or mass-effect. The ventricles are within normal limits in size and configuration. Major flow-voids are preserved.Sella and orbits are grossly within normal limits. Paranasal sinuses and mastoid cells are clear. There is diffuse T1 marrow signal hypointensity and mild calvarial thickening compatible with known sickle cell disease.
1. Brain parenchyma appears within normal limits. No evidence of acute infarct.2. Mild diffuse thickening of the calvarium with T1 marrow hypointensity which is compatible with known sickle cell disease.