The organs were removed and prepared for histhopathological observation. They were fixed in bouin’s fluid for 24 hours, washed with 70 percent ethanol and dehydrated through a graded series of ethanol (Schalm et al, 1995, Kelly, 1979). They were embedded in paraffin,sectioned at 4-5 um thickness stained with haematoxylin and eosin and examined using light microscope and photomicrography (Keneko, 1989).