A woman in South Korea who underwent a colonoscopy for occasional gastrointestinal discomfort had 4 adult flukes of Echinostoma cinetorchis showing 37 collar spines around the oral sucker recovered from the terminal ileum through the ascending colon. Partial gene sequencing showed high identity with E. cinetorchis.
Keywords: Echinostoma cinetorchis; South Korea; colonoscopy; enteric infections; molecular identification; parasites; zoonoses.