"CT brain demonstrates a rounded mass lesion which is usually heterogeneous in density, including sometimes containing hyperdense calcifications 3-5. Post-contrast administration, there is typically ring enhancement of the capsule, without enhancement of the inner components 3-5."
"MRI brain findings have been infrequently described and vary within published literature 1-3,6. Some cases report chronic encapsulated intracerebral haematomas having a layered appearance on T2 and T2* (GRE or SWI), with a hypointense inner portion due to haemosiderin, a hyperintense intermediate ring due to subacute or early chronic haematoma, and a hypointense outer capsule 2,3. However, other published cases demonstrate chronic encapsulated intracerebral haematomas having heterogeneous T2 signal throughout without any distinct layering 1,2,6. Post-contrast administration on T1, there may be complete or incomplete ring enhancement 2."
"The clinical presentation is most commonly (~50%) with signs and symptoms of raised intracranial pressure, such as headache, nausea and vomiting, and papilloedema 1-3. Patients may also have progressive neurological deficits (~25%), such as weakness, visual deficit, behavioural changes, or dysphasia 1-3. Acute presentation with seizure can also occur (~25%) 1-3."