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Previous Volume 332:923 April 6, 1995 Number 14 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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Figure 1A.

View larger version (140K): [in this window] [in a new window]   Figure 1. Magnetic resonance imaging and angiography of the brain revealed a left parietal arteriovenous malformation measuring 2.5 cm in diameter in a 32-year-old woman who presented with severe headache. Panel A, a coronal T1-weighted magnetic resonance image, and Panel B, an axial T2-weighted magnetic resonance image, demonstrate a tangle of abnormal vascular channels. Rapid blood flow causes a lack of signal intensity within the larger vessels of the arteriovenous malformation. Interspersed areas of higher signal intensity within the nidus of the arteriovenous malformation may represent regions of slow blood flow or hemorrhage (arrow, Panel A). An . . . [Full Text of this Article]

 

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