Histopathology of the spleen tissues.

<p>(A) Control where BALB/c mice were not injected with WEHI-3 cells; the white pulp, red pulp and lymphocyte cells were clearly shown. (B) BALB/c mice injected with WEHI-3 cells and not treated. The leukemia sectioning showed widened white pulp, but the red pulp became tiny. The yellow arrows indicated neoplastic cells. (C) BALB/c mice injected with WEHI-3 cells and treated with 100 mg/kg thymoquinone. The white pulp decreased in size, and the red pulp exhibited a little increase in size. The treatment with 100 mg/kg thymoquinone showed similarity to the control.