(a)
(b)
(c)
(d)
Figure 4: Histopathological study in carrageenan induced pleurisy in rats. Histological slides showing vehicle only (a), vehicle + carrageenan (b), MAE (300 mg kg−1) + carrageenan (c), and diclofenac (100 mg kg−1) + carrageenan (d). Micron bar represents 100 μm.