期刊
CUREUS JOURNAL OF MEDICAL SCIENCE
卷 14, 期 10, 页码 -出版社
CUREUS INC
DOI: 10.7759/cureus.30729
关键词
fluorescence microscopy; esophagogastroduodenoscopy; scanning electron microscopy analysis; lanthanum carbonate; hyperphosphatemia
This study assessed the features of gastroduodenal lanthanum phosphate deposition using light, electron, and fluorescence microscopy. The results showed that the deposits were more easily recognizable on electron and fluorescence microscopy, with the green filter providing the most clear visualization of lanthanum phosphate.
Diagnostic utility of fluorescence microscopy for lanthanum phosphate deposition in the gastrointestinal mucosa has not been reported previously. In this study, we comparatively assessed the light, electron, and fluorescence microscopy features of gastroduodenal lanthanum phosphate deposition in 10 patients with deposits in the stomach and 5 patients with deposits in the duodenum. During light microscopy, lanthanum deposits were observed as dark-brown, needle-shaped, or crystalloid structures and pale red amorphous materials. During electron microscopy, the deposited material appeared as bright aggregates. Fluorescence microscopy also revealed lanthanum deposits as bright areas under green, red, and blue filters. The deposits were more easily recognizable on electron and fluorescence microscopy than on light microscopy. Furthermore, during fluorescence microscopy, the green filter provided the most clear visualization of lanthanum phosphate. In conclusion, fluorescence microscopy with a green filter is useful in determining the degree and extent of lanthanum deposition in the gastroduodenal mucosa.
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