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Expansion of perivascular spaces after CED. PBS-infused tissue was processed for EM and revealed the expansion of perivascular spaces after CED. These spaces ranged in size from 11 μm (width) × 3 μm (height; black arrows; A) and 2.0 μm (w) × 11.5 μm (h; B), as compared to non-infused, naïve control tissue (C). BV = blood vessel lumen. Scale bar: 1 μm.
