7. Histopathology of Cysticercu sfasciolaris Batsch, 1786 (Cyclophyllidae: Taeniidae) extrinsic parasite of liver in infected rat (Rattus rattus) from Hyderabad, Sindh, Pakistan

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Farheen Shaikh, Saima Naz, Nadir Ali Birmani


The aim of study was to examine pathology of tissues caused by Cysticercus fasciolaris (Cyclophyllidae: Taeniidae) a larval stage of a helminth parasite Taenia taeniformis in the infected liver of rats Rattus rattus. The study was carried out at the advance laboratory of Parasitology of the Department of Zoology, University of Sindh Jamshoro during the year from August 2018 to November 2019. A total of 08 brown rats Rattus rattus were entrapped from various localities of Hyderabad and were brought to the laboratory for examination of their helminthes parasites. A total of 08 rats were dissected and only 05 were found infected with Cysticercus fasciolaris on liver in the form of cysts. The samples of tissues from infected parts of the liver were obtained and fixed in bouin’s solution. The series of sections were made by microtome technique and were finally mounted in Canada balsam. In the histopathological findings, the infected liver of rats revealed presence of mononuclear cells such as lymphocytes, macrophages, eosinophilic cells, plasma cells, and polynuclear cellular infiltration in the necrotic area, fatty disintegration and development of coagulation areas and necrosis of the hepatic cells. The infected liver had congested blood vessels and congested sinusoids were observed and investigated.

Keyword: Histopathology; Cysticercus fasciolaris; Cestode; Endoparasite; Rats; Hyderabad


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