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743
Oncorhynchus mykiss
Trout, Rainbow Freshwater
Hepatic cyst
Liver
Unknown
Unknown
Samples taken from site following a diesel spill.
Idiopathic lesion
Fluid filled cyst in the liver. Fibrotic region with inflammatory cells surrounded with a region of ductular hyperplasia supported by a dense connective tissue framework. This region gradually becoming interspersed with recognisable strands of hepatocytes and inflammatory cells. In some areas there is a clear demarcation between the lesion and normal liver parenchyma.
Trout farm location
Wales
UK
S. W. Feist
8/22/2001