Intraparenchymal haemorrhage and surrounding oedema is centered over the RIGHT basal ganglia extending into the frontal and parietal lobes. Intraventricular haemorrhage within the right lateral ventricle, anterior horn of the left ventricle, third ventricle and the aqueduct. Mass-effect is seen with partial compression of the body of the right lateral ventricle and midline shift to the left of 4 mm at the level of the septum pellucidum and effacement of the frontal and parietal sulci. Prominence of the temporal horns in keeping with mild-to-moderate hydrocephalus.
Evidence of previous frontal craniotomy, with metallic clips seen medial to the right frontal lobe and encephalomalacia of the parafalcine frontal lobes. Periventricular and deep white matter hypodensity most likely secondary to chronic small vessel ischaemia.
2 hyperdense foci are seen within the central portion of the intraparenchymal haematoma is seen on the CTA COW. A 3 x 3 mm posteroinferior projecting right PCOM aneurysm is seen.