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- gastrointestinal infections
- general medicine (see Internal Medicine)
- infectious diseases
- tropical medicine
A 28-year-old man with an acute history of abdominal pain presented to our emergency department complaining of tape-like structure protruding from his anus (figure 1). There was no history of fever, rebound tenderness or weight loss. He had no previous significant medical problems and denied any recent travel outside Japan. However, he also reported that he regularly ate raw salmon sushi. The complete blood examination, including an eosinophil count and blood chemistry, was unremarkable. The vitamin B12 level was not checked in the emergency …
Contributors HM contributed to the writing of the manuscript and contributed to discussion. MM also contributed to discussion and patient care.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient consent Obtained.
Provenance and peer review Not commissioned; internally peer reviewed.