Histological Study of Hepatopancreas in Iridescent Shark Catfish (Pangasius hypophthalmus)

The aim of this study was to determine the histological structures of the hepatopancreas in Iridescent Shark Catfish (Pangasius hypophthalmus). Microscopic results showed that the hepatopancrease was covered by a thin serosa and thin capsule. The lobulation was not seen in the liver clearly. Parenchyma of the liver was primarily composed of polyhedral hepatocytes typically with central nuclei. Hepatocytes had many eosinophilic vacuoles. Amongst them many sinusoids were present. Pancreas tissue was penetrated into the liver along with portal vein. The exocrine pancreatic tissue was located in the liver and consisted of serous acini with centroacinar cells and their ducts. Thin septa of connective tissue separated parenchyma of the liver from the exocrine pancreatic cells. Microscopic structure of hepatopancreas in these species was more similar to the other fishes, but it had also structural differences.