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120
Rutilus rutilus
Roach (inc. hybrids)
Adenocarcinoma
Thyroid
Unknown
Unknown
2-4% of the population of the roach in the lake had this condition, all 5 year old plus fish. Other species not affected.
Infiltrating neoplasm involving the thyroid - marked post-mortem change/ autolysed.
Not recorded
East Midlands
UK
D. Bucke
1/17/1980