Esocid lymphosarcoma

Esocid lymphosarcoma, also known as Esox lymphosarcoma[1] is a transmissible tumor which affects two species of fish, northern pike (Esox lucius) and Muskellunge (Esox masquinongy), in North America and Europe.[2] The tumors initially are found in the skin, but later in the course of the disease are also found in the internal organs.[1] The tumors appear as colorless skin protrusions which are several centimeters in diameter.[3] A retrovirus has been detected in affected cells by electron microscopy.[1] The disease is spread by physical contact between fish,[1] probably during the spring spawning season.[2] The disease has the lowest prevalence in the summer.[2]

References

  1. ^ a b c d Plumb, John A.; Hanson, Larry A. (2011). "Esox lymphosarcoma". Health Maintenance and Principal Microbial Diseases of Cultured Fishes (3rd ed.). John Wiley & Sons. pp. 260-261. ISBN 9780470958469.
  2. ^ a b c Coffee, LL; Casey, JW; Bowser, PR (May 2013). "Pathology of tumors in fish associated with retroviruses: a review". Veterinary Pathology. 50 (3): 390–403. doi:10.1177/0300985813480529. PMID 23456970.Open access icon
  3. ^ Roberts, Ronald J. (2012). Fish Pathology (4 ed.). John Wiley & Sons. p. 288. ISBN 978-1118222966.


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