Type I choledochal cysts in adults: natural history and implications for management - Report - MDSpire

Type I choledochal cysts in adults: natural history and implications for management

  • By

  • Sonal Walia

  • Mohammed Saad

  • James Butler

  • Ryan J. Ellis

  • Thomas K. Maatman

  • Trang Nguyen

  • C. Max Schmidt

  • Nicholas J. Zyromski

  • Eugene P. Ceppa

  • Attila Nakeeb

  • Omer Saeed

  • Michael G. House

  • Alex M. Roch

  • July 10, 2026

  • 0 min

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Clinical Report: Adult Presentation of Type I Choledochal Cysts

Background

Choledochal cysts are rare congenital anomalies that can lead to significant complications, including malignancy. While traditionally viewed as a pediatric condition, an increasing number of adults are being diagnosed due to advancements in imaging techniques.

Data Highlights

No numerical data available in the source material.

Key Findings

  • Type I choledochal cysts are the most common subtype in adults, accounting for 68% of cases.
  • Approximately 20% of choledochal cysts remain undetected until adulthood.
  • The risk of malignancy in adults with choledochal cysts is significantly lower than previously reported in pediatric studies, with a prevalence of 7.5% in a pooled analysis.
  • Postoperative morbidity rates can reach up to 34%, affecting both general and mental health.
  • Challenges in diagnosis include the absence of the classical triad of symptoms typically seen in pediatric cases.

Clinical Implications

Clinicians should be aware of the atypical presentation of choledochal cysts in adults and consider a broader range of symptoms.

Conclusion

The management of Type I choledochal cysts in adults necessitates a nuanced understanding of their clinical course and potential complications.

Related Resources & Content

  1. Alonso-Lej et al., 1959 -- Classification of choledochal cysts
  2. Todani et al., 1977 -- Expanded classification of choledochal cysts
  3. Babbitt's theory on choledochal cysts origin
  4. EASL Clinical Practice Guidelines, 2025 -- Management of extrahepatic cholangiocarcinoma
  5. Journal of Gastrointestinal Surgery — Current Approaches to the Management of Hepatic Cyst Disorders: Techniques and Results from a Specialized Hepatobiliary Center
  6. Pediatric Choledochal Malformations: Insights from a National Study in the Netherlands
  7. Outcomes of Surgical Intervention for Common Bile Duct Stones: A Tertiary Referral Center's Experience Over Short and Long Term
  8. Clinical and Pathological Characteristics of Liver Biliary Cystic Tumors: Insights from a Single-Center Study
  9. Current Approaches to the Management of Hepatic Cyst Disorders
  10. Pediatric Choledochal Malformations: Insights from a National Study in the Netherlands
  11. Outcomes of Surgical Intervention for Common Bile Duct Stones
  12. Clinical and Pathological Characteristics of Liver Biliary Cystic Tumors
  13. Clinical profile, management, and outcomes of choledochal cysts in adults
  14. EASL Clinical Practice Guidelines on the management of extrahepatic cholangiocarcinoma
  15. https://academic.oup.com/bjs/article/112/Supplement_17/znaf270.349/8406630

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