🔬 Native sputum smear, 100x magnification; 40x; + phone camera magnification. Charcot-Leyden crystals. They appear as shiny, smooth, colorless rhomboids of various sizes, sometimes with blunt ends. Their formation is associated with the breakdown of eosinophils. The presence of these crystals in sputum is characteristic of bronchial asthma, eosinophilic bronchitis, helminthic lung lesions, and less commonly, croupous pneumonia and various forms of bronchitis.
🙏 Photos and description kindly provided by biologist Anna Feditskaya, Luhansk.
