Charcot-Leyden Crystals

Crystals. Crystals in wet mount preparation from fecal concentration procedure (unstained, high power). These slender pointed crystals are highly variable in length, are refractile as are Charcot-Leyden crystals, and exhibit a greenish tinge in fresh smears. They are sometimes misidentified as Charcot-Leyden crystals. They are found in the feces of individuals who have ingested fresh or canned pineapple or pineapple juice as well as other fruits (e.g., kiwis) and vegetables (e.g., asparagus).