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Fig. 5 | BMC Veterinary Research

Fig. 5

From: Polystyrene nanoplastic and engine oil synergistically intensify toxicity in Nile tilapia, Oreochromis niloticus

Fig. 5

Light photomicrograph of spleen of control and exposed Nile tilapia sectioned with H&E stain: Control showing normal histology of the splenic red and white pulps (arrow) (a). The spleen of PS-NPs exposed group showing severe hemorrhage of the red pulps (arrow) with erythrocytes infiltration (star) (b), besides remarkable thickening of blood vessels wall (arrow) and melanomacrophages accumulation (star) (c). The spleen of EO exposed group showing pronounced hemorrhage with erythrocytes infiltration (arrow) (d). The spleen of PS-NPs + EO group showing extensive hemorrhage of the red pulps (arrow), moreover melanomacrophages infiltration (star) (e), besides lymphoid depletion and vacuolation (arrow) (f)

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BMC Veterinary Research

ISSN: 1746-6148

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