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MR imaging features indicative of mitochondrial disease that were frequently found included white matter rarefaction, well-delineated cysts, T2 hyperintensity of the middle blade of the corpus callosum, and symmetric abnormalities in deep gray matter structures.

Foreign polymer materials are present in approximately half of retrieved thrombi, most commonly polytetrafluoroethylene from catheter liners and less from hydrophilic coatings.