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Related Concept Videos

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The pancreas, an elongated and flat gland situated behind the stomach, serves a vital function in digesting food and managing blood sugar levels.
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Related Experiment Video

Updated: Aug 26, 2025

Bile Duct Ligation in Mice: Induction of Inflammatory Liver Injury and Fibrosis by Obstructive Cholestasis
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Biliary obstruction caused by plant seeds.

Kazuyuki Gyoten1, Naohisa Kuriyama2, Akinobu Hayashi3

  • 1Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan.

Clinical Journal of Gastroenterology
|October 5, 2022
PubMed
Summary

This study reports the first case of biliary obstruction caused by a rare mass of plant seeds. Diagnosis was challenging, highlighting the need for considering unusual causes of bile duct blockage.

Keywords:
Bile duct cancerBiliary obstructionForeign objectsPlant seeds

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Area of Science:

  • Gastroenterology and Hepatology
  • Pathology
  • Plant Science

Background:

  • Biliary obstruction is typically diagnosed through imaging and endoscopic procedures.
  • Foreign body-induced biliary obstruction is uncommon, posing diagnostic challenges.
  • Plant seeds are an unprecedented cause of biliary obstruction.

Observation:

  • A patient presented with biliary obstruction initially suspected to be cholangiocarcinoma.
  • Surgical resection revealed a solid mass composed of plant seeds, bile, and inflammatory cells.
  • DNA analysis identified the seeds as Solanum lycopersicum, Brassica, and Citrus species.

Findings:

  • The study details the first reported instance of biliary obstruction caused by accumulated plant seeds.
  • Pathological assessment and DNA analysis confirmed the seed species involved.
  • The mass formation mimicked malignant biliary strictures.

Implications:

  • This case expands the differential diagnosis for biliary obstruction.
  • It underscores the importance of thorough pathological examination in unexplained cases.
  • Awareness of such rare etiologies can improve diagnostic accuracy and patient outcomes.