Gross and microscopic pathology associated with large cavernous lesions in muscle of Chinook salmon from Lake Ontario.
Since 1999, eight adult Chinook salmon (Onchorhynchus tshawytscha) from Lake Ontario with large, focal, cavernous, fluid-filled muscle lesions have been examined in our respective laboratories. Gross and microscopic examination, cytology, and bacteriology were performed. Microscopically the lesions were consistent with chronic abscesses. Cytologic evaluation revealed diplomonad flagellate Spironucleus within these lesions. We provide a description of the gross and microscopic pathology associated with the cavernous lesions.
Meseck
Emily K
EK
Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, USA.
French
Tracy W
TW
Grimmett
Stephanie G
SG
Bartlett
Susan L
SL
Wooster
Gregory A
GA
Getchell
Rodman G
RG
Schachte
John H
JH
Bowser
Paul R
PR
D000818:Animals; D016828:Diplomonadida / Q000302:isolation & purification*; D005393:Fish Diseases / Q000453:epidemiology / Q000469:parasitology* / Q000473:pathology*; D018482:Muscle, Skeletal / Q000469:parasitology / Q000473:pathology / Q000648:ultrastructure; D009864:Ontario / Q000453:epidemiology; D012474:Salmon / Q000469:parasitology