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Fig 1. A, CT scan of patient 1, 2 days after angiography, demonstrating right anterior and middle cerebral artery territory infarcts, as well as a ventricular drain in situ. B, Section of middle cerebral artery containing recent thrombus and a particle of polyvinyl alcohol (arrow, hematoxylin phloxine saffron, x200). C, Small leptomeningeal artery demonstrating acute cellular reaction and thrombosis and (D) under polarized light, strongly birefringent, hollow fibers characteristic of cotton (C and D, hematoxylin phloxine saffron, x630).
