Unenhanced axial CT images of the head a show large high-density mass
centered in the right putamen, associated with a small amount of surrounding
edema and mass effect on the right lateral ventricle and cortical sulci.
Subarachnoid blood is also present in the anterior interhemispheric fissure.
Unenhanced CT 6 hours later discloses marked increase in size of the
high-density mass, with extension into the right lateral ventricle.
There is worsening of the midline shift and mass effect.
Key words: vascular
Basal ganglia hemorrhage - Angio (-);
Drug abuse history