معضل تشخیصی: کولون فیشر توسط مارماهی که از رکتوم او نفوذ کرده بود سوراخ شد.

Diagnostic dilemma: Fisher's colon punctured by eel that snuck in through his rectum

A man's intestines were perforated in an "exceedingly rare" medical case involving a live eel.