Charcot-Leyden Crystals

Charcot-Leyden Crystals. Crystals in wet mount preparation from fecal concentration procedure (unstained, high power). Charcot-Leyden crystals are breakdown products of eosinophils and frequently are found in feces; however, they may also occur in sputum and in tissues. Their shape is that of double elongated pyramids with pointed ends. They are often found in people with tissue-invading parasitic infections as well as in individuals with various allergic conditions.