Allergic Diseases - Hirohito Kita

Photomicrograph of an eosinophil incubated with media only for 4 hours. Minimal degranulation seen, most granules still intact (see arrows for examples).

Photomicrograph of an eosinophil incubated with 100 micrograms/ml of an Alternaria extract for 4 hours. Notice extensive degranulation of nearly all of the granules (see arrows for examples).