Spontaneous<unk>  with hydrocephalus on CT scan Both computed tomography angiography (CTA) and magnetic resonance angiography (MRA) have been proved to be effective in diagnosing intracranial vascular malformations after<unk> . So frequently, a CT angiogram will be performed in order to exclude a secondary cause of hemorrhage or to detect a "spot sign". Intraparenchymal hemorrhage can be recognized on CT scans because blood appears brighter than other tissue and is separated from the inner table of the skull by brain tissue. The tissue surrounding a bleed is often less dense than the rest of the brain because of edema, and therefore shows up darker on the CT scan. Location When due to high blood pressure,<unk> s typically occur in the putamen (50%) or thalamus (15%), cerebrum (10–20%), cerebellum (10–13%), pons (7–15%), or elsewhere in the brainstem (1–6%).
Intracerebral hemorrhage
Stroke
Subarachnoid hemorrhage
Cerebral edema  Cerebral edema  1
Epidural hematoma
Intracranial hemorrhage
Subdural empyema
Brain herniation