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A lymphosarcoma of thymic origin in the rainbow trout, Salmo gairdneri Richardson
Author(s) -
WARR G. W.,
GRIFFIN B. R.,
ANDERSON D. P.,
MCALLISTER P. E.,
LIDGERDING B.,
SMITH C. E.
Publication year - 1984
Publication title -
journal of fish diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 85
eISSN - 1365-2761
pISSN - 0140-7775
DOI - 10.1111/j.1365-2761.1984.tb00908.x
Subject(s) - rainbow trout , salmo , biology , gill , pathology , antibody , spleen , lymphoma , virus , kidney , virology , fish <actinopterygii> , immunology , fishery , endocrinology , medicine
. A rainbow trout with a malignant lymphoma of probable thymic origin showed direct spread of the tumour to the gills, metastases to the liver and head kidney, and the presence of abnormal circulating lymphocytes. The cells of the tumour possessed plasma membrane immunoglobulin detectable by immuno–fluorescence. Examination of the tumour cells by transmission electron microscopy revealed no evidence of virus associated with the cells. Infectious viruses could not be detected in the tumour tissue, and the tumour was not transmissible by injection of live tumour cells into young rainbow trout. Attempts to establish the tumour in long–term culture were unsuccessful.