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(a) Photomicrograph of mice spleen treated with lead acetate showed lymphoid follicle with numerous necrotic foci (arrows) filled by darkly stained neutrophils and basophils (H&E-Mag ×400). (b) Photomicrograph of mice spleen treated with lead acetate showed congested and ill defined spleen architecture, trabeculae (T) and large macrophages (arrows) (H&E-Mag ×400).
