6b514bce_ter_Fish___Minnesota_Sea_Grant__Symptom
[Parasite] LYMPHOCYSTIS [Type] virus [Description] Infects walleye (occasionally perch and other species). Enters skin abrasions and attacks connective tissue. Cells grow to enormous size and cause lumpy growths. [Edible] Yes [Recommendation] Remove infected skin; clean fish and prepare as usual [Symptom] 
Cluster of white or cream colored warts. May be pinkish to red and resemble a raspberry
Parasites of Freshwater Fish | Minnesota Sea Grant
Symptom