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Arch Neurol. 2004;61:1790.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

A 65-year-old woman experienced an acute onset of expressive dysphasia 48 hours after a left carotid endarterectomy. A computed tomographic (CT) head scan revealed a 35-cm³left frontal hematoma (Figure, A). The patient improved with conservative management. A CT scan performed 9 weeks later demonstrated hypodensity with ring enhancement postcontrast (Figure, B and C). Subsequent magnetic resonance imaging findings of negative mass effect and uniform hemosiderin staining weighed against an associated tumor or abscess¹ (Figure, D).

Figure appears in full text version. Figure. A, Initial computed tomographic scan demonstrating left frontal hematoma. Precontrast (B) and postcontrast computed tomographic scan (C) 9 weeks later showing a ring-enhancing lesion. D, T2 magnetic resonance image demonstrating negative mass effect.

Contrast enhancement in a ring pattern may appear within 1 week and persist for 6 months after a hemorrhagic stroke,² mimicking the appearance of a tumor or an abscess. Magnetic resonance imaging noninvasively provides . . . [Full Text of this Article]

AUTHOR INFORMATION

A. A. Wong, MBBS; R. D. Henderson, MBBS, FRACP; J. D. O'Sullivan, MBBS, MD, FRACP; S. J. Read, MBBS, PhD, FRACP; T. Rajah, MBChB, FRACR