Pathological changes in the liver tissue of the lazard fish caused by larvae thynnascaris [F. Anisakidae]

ABSTRACT

Histopathological changes in the liver of the lizard fish [F. Synodontidae] due to infection with the nematode larvae, Thynnascaris depend on the intensity of infection. In mild infection [less than two larvae per liver]; no apparent changes were detected, since the larvae were mainly on the external surface of the liver. In moderate infection [less than five larvae per liver] changes became apparent as shown by swelling in the hepatocytes. In heavy infections [five larvae or more] some of the larvae penetrated deeply into the liver tissue leading to its necrosis and destruction of bile ducts and blood vessels