Stages of cerebral hemorrhage. The appearance and evaluation of intracranial hemorrhage on MRI primarily depend on the age of the hematoma and on the imaging sequence or parameters (eg, weighting, weighting, weighting).
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
Fahr's disease is usually initially asymptomatic in most patients. However, various neurological symptoms may develop later in life, such as psychosis, dementia & movement disorders (parkinsonism). The differential diagnosis of basal ganglia calc.