Recurrent Migration of Fish Bone Foreign Bodies into the Intrahepatic Bile Duct After Pancreaticoduodenectomy Identified by DNA Metabarcoding: A Case Report with Pathophysiological Considerations
Year: 2026
Type: article
Study design: Case Report
Abstract: Fish bone migration into the bile duct after pancreaticoduodenectomy (PD) is rare, and the mechanism of recurrent migration is unclear. We report a case in which multiple fish bones were repeatedly identified and removed from the intrahepatic bile duct during four endoscopic retrograde cholangiopancreatography procedures over more than six years after PD. The foreign bodies were definitively identified as fish bones using a component analysis and DNA metabarcoding. These findings suggest that recurrent migration may occur even in the absence of apparent anatomical abnormalities and it may be associated with postoperative intestinal dysmotility and altered intraluminal flow dynamics.
Source: Internal Medicine
Institution: Kyoto Katsura Hospital
Language: English
Topic: Foreign Body Medical Cases
Subfield: Otorhinolaryngology
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W7201888874