Figure 9.

Representative appearances of the spleen tissue stained with H&E. The photographs were taken at 10× (A, B, C, and D) and 40× (a, b, c, and d) magnification. The control group (A and a) presented with normal tissue. The noise group (B and b), the toluene group (C and c), and the combined group (D and d) showed some pathological changes in lymphoid tissue. The noise group showed larger lymphoid tissue, yet smaller than the toluene group. It had more dilated and bloodier sinusoids than control and the toluene group. The combined group showed the same as its components but the changes were more prominent