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Non-contrast CT (A) performed demonstrates a small right basal ganglia intracerebral haemorrhage.
CTA source image (B) demonstrates punctuate focus of contrast enhancement within the haemorrhage that was discontinuous from adjacent vessels on multi-planar reformats, and not present on the pre-contrast image, the CTA spot sign, reflecting active, dynamic haemorrhage.
Follow-up 24 hour non-contrast CT (C) demonstrates haematoma growth.