eosin Staining with an aqueous or alcoholic solution of eosin Y,colors eosinophilic structures in various shades of red, pink and orange. The eosinophilic structures are generally composed of intracellular or extracellular protein. The Lewy bodies and Mallory bodies are examples of eosinophilic structures. Most of the cytoplasm is eosinophilic. Red blood cells are stained intensely red. visualization of eosin FBbi:00000037 image non-specific protein affinity