Female, 61 years old, with altered mental status, fever, history of melanoma. Scattered foci of T2 hyperintensity are seen predominantly within the subcortical white matter. No restricted diffusion is seen. No evidence of parenchymal edema or mass effect is detected. There is no pathologic parenchymal or extra-axial enhancement. The ventricles are normal in size and morphology. No findings to suggest acute intracranial hemorrhage or any abnormal extra-axial fluid collection are detected. A mucous retention cyst is evident in the left maxillary sinus.
1.No definite acute intracranial abnormalities.2.No evidence of intracranial metastases.3.Scattered nonspecific foci of white matter signal abnormality are seen which may represent the sequelae of prior microvascular ischemic disease, demyelinating disease, vasculitis or migraine headache among other etiologies.