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Neuropathological features of a central nervous system lymphatic–venous malformation. H&E staining shows thin-walled vessels of a vascular malformation with multiple organised thrombi, ×40 (A), dilated lymphatic vessels (arrows), ×40 (B), vein dilatation and organised thrombi, ×40 (C). CD31 immunohistochemical stain highlights malformed vessels, ×100 (D).
