Superficial Siderosis of the Central Nervous System Induced by a Single-Episode of Traumatic Subarachnoid Hemorrhage: A Study Using MRI-Enhanced Gradient Echo T2 Star-Weighted Angiography
Figure 2
CT and enhanced gradient echo T2 star-weighted angiography (ESWAN) images of the brain of a 54-year-old man who experienced a traumatic brain injury.
An axial head CT image displays right frontotemporal SAH (Fisher grade 4) with bilateral frontal contusions and intracerebral hematoma (A). A follow-up CT image 26 weeks after the brain injury indicates that the hemorrhages were completely resolved and the lateral ventricles were mildly enlarged (B). A follow-up MRI (1.5T) image was obtained 26 weeks following the head injury (C,D). The axial ESWAN image displays a rim of hypointensity (arrowheads), with hemosiderin deposits forming along the cerebral convexity (C, D).