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Scanning electron micrographs of crystalline ultrastructures on the surface of inconspicuous valve areas in patients suffering from CAVD. (a) Bundles of faceted microrods are inserted into the leaflet surface. Magnification ×5790. (b) Surface areas are covered with round-shaped or sphere-like, flat structures adherent to the leaflet surface. Note the additional small bundle of plate-like facetted microrods (center). Magnification ×1790.
