Lipomyelomeningocoele (LMMC) is one of the forms of closed spinal dysraphism. It usually presents as a subcutaneous fatty mass just above the intergluteal cleft. typically seen as a spinal defect with lipomatous tissue, covered with skin neural placode-lipoma interface lies outside the spinal canal due to enlargement of subarachnoid space low lying cord is usually present http://radiopaedia.org/articles/lipomyelomeningocoele-1/edit
Brain Aneurysm Imaging: T1-weighted magnetic resonance image (MRI) of a middle-aged woman with progressive headaches, aphasia, and right-sided hemiparesis. A large intracerebral mass with a significant amount of surrounding edema is depicted. The lesion is a giant internal carotid artery aneurysm.
Central pontine myelinolysis (CPM) (also known as osmotic demyelination) refers to acute demyelination of the white matter tracts traversing the pons. It seen in the setting of osmotic changes, typically with the rapid correction of hyponatraemia. Despite the name extrapontine structures can also be affected: basal ganglia, midbrain and subcortical white matter. It is then known as extrapontine myelinolysis (EPM). http://radiopaedia.org/articles/central-pontine-myelinolysis
Meningiomas are the most common extra-axial tumours of the central nervous system. They are a non-glial neoplasm that originates from the arachnoid cap cells of the meninges. Meningiomas have characteristic imaging findings although there are many variants. As is the case with most other intracranial pathology, MRI is the investigation of choice for the diagnosis and characterisation of meningiomas. http://radiopaedia.org/articles/meningioma
SMART syndrome: Left temporal-occipital region gyral enhancement. In this clinical setting, the appearance suggests SMART syndrome (stroke-like migraine attacks after radiation therapy), an uncommon complication of cerebral irradiation.