The correlation of light and electron microscope observations
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Updated: Oct 23, 2026

Correlative Microscopy for 3D Structural Analysis of Dynamic Interactions
Published on: June 24, 2013
Abstract:
A technique is described to allow electron microscopic investigation of a specific feature of a section on a glass slide. A section on a glass slide (previously treated with a silicone release agent) is processed as required for light microscopy. The section is then impregnated with Araldite and cured with an epoxy resin block on top of it. The section and block are removed from the slide and viewed with a light microscope. The selected area for ultrastructural study remains under continuous observation while the block is trimmed. Semi-thin (1 micron) sections retain the original staining for light microscopy and ultra-thin sections are stained with heavy metals in the normal manner. We show how an inflammatory lesion in a large area of muscle in a case of polymyositis may be quickly located and studied at the ultrastructural level.
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