Animals (Jun 2024)

Blood Fluke Infection (Spirorchidiasis) and Systemic Granulomatous Inflammation: A Case Study of Green Sea Turtles (<i>Chelonia mydas</i>) on Jeju Island, South Korea

  • Da Sol Park,
  • Won Hee Hong,
  • Jae Hoon Kim,
  • Adams Hei Long Yuen,
  • Sib Sankar Giri,
  • Sung Bin Lee,
  • Won Joon Jung,
  • Young Min Lee,
  • Su Jin Jo,
  • Mae Hyun Hwang,
  • Jae Hong Park,
  • Eun Jae Park,
  • Se Chang Park

DOI
https://doi.org/10.3390/ani14111711
Journal volume & issue
Vol. 14, no. 11
p. 1711

Abstract

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Despite the precarious state of marine turtles as a highly endangered species, our understanding of their diseases remains limited. This case report presents a detailed pathological investigation of spirorchiidiasis, a blood fluke infection that poses a substantial threat to marine turtles. This retrospective study examined three cases of spirorchiid-infected sea turtles, specifically, green sea turtles stranded on Jeju Island, South Korea. Premortem examination of the three spirorchiid-infected green sea turtles demonstrated nonspecific clinical symptoms; blood analysis revealed dehydration, malnutrition, and anemia. Computed tomography scans provided insights into severe pulmonary and extrapulmonary manifestations, including the mass present in the joint region. Post-mortem examinations consistently indicated severe lung lesions and systemic manifestations, with histopathological examination confirming the presence of spirorchiid ova across various organs. Despite the global prevalence of spirorchiidiasis in sea turtles, disease severity varies regionally. This report provides a detailed demonstration of the pathology of spirorchiidiasis in sea turtles from Northeast Asia.

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