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Scanning electron microscopic study of microcrystals implicated in human rheumatic diseases
Scanning Electron Microscopy
|January 1, 1980
Summary
Scanning electron microscopy (SEM) with X-ray spectroscopy identifies microcrystals in rheumatic diseases. While not definitive alone, SEM aids in analyzing crystal populations in joints and surrounding tissues.
Area of Science:
- Rheumatology
- Materials Science
- Biomineralization
Background:
- Rheumatic diseases involve crystal deposition in joints and surrounding tissues.
- Accurate identification of these microcrystals is crucial for diagnosis and treatment.
- Conventional methods may have limitations in characterizing diverse crystal populations.
Purpose of the Study:
- To evaluate the utility of Scanning Electron Microscopy (SEM) coupled with Wavelength Dispersive X-Ray Spectroscopy (WDS) for analyzing microcrystal populations in rheumatic conditions.
- To describe the morphologies and tissue interactions of various identified microcrystals.
- To assess the complementary role of SEM-WDS alongside X-Ray Diffraction (XRD).
Main Methods:
- Utilized SEM in conjunction with WDS for microcrystal analysis.
- Correlated SEM-WDS findings with X-Ray Diffraction (XRD) data.
- Examined microcrystals in synovial fluid and intra-articular/periarticular tissues.
Main Results:
- SEM-WDS successfully detected and characterized microcrystals, including monosodium urate, calcium pyrophosphate dihydrate (CPPD), apatite, and corticosteroids.
- Morphologies and spatial relationships of microcrystals with cellular and collagenous structures were detailed.
- SEM-WDS demonstrated capability in identifying isolated microcrystals and their distribution.
Conclusions:
- SEM-WDS is a valuable tool for detecting, describing, and analyzing microcrystal populations in rheumatic diseases.
- It enhances understanding of crystal presence in synovial fluid and tissues.
- SEM-WDS complements XRD, improving the comprehensive analysis of crystal-related pathologies.