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Congenital bronchobiliary fistula in a 65-year-old woman

Hideshi Uramoto1, Osamu Kawano, Mineharu Sugimoto

  • 1Kumamoto Saishunso National Hospital, National Hospital Organization, Kosi.

Insights

Congenital bronchobiliary fistula (CBBF), a rare condition, was incidentally found in a 65-year-old woman. This case represents the oldest reported adult diagnosis of CBBF, likely due to a narrow fistula.

Area of Science:

  • Medical Diagnostics
  • Congenital Malformations
  • Pulmonology
  • Hepatology

Background:

  • Congenital bronchobiliary fistula (CBBF) is a rare congenital anomaly, typically diagnosed in infancy due to respiratory issues.
  • Surgical intervention is the standard treatment for CBBF.
  • Most reported cases occur in neonates and infants, with few adult diagnoses.

Observation:

  • A 65-year-old woman presented with incidental findings of CBBF during investigations for pulmonary nodules.
  • Bronchoscopy revealed an accessory bronchus with bilirubin-rich secretions.
  • Thoracic CT, drip infusion cholangiography, and cholescintigraphy confirmed the airway-biliary tract communication.

Findings:

  • The patient had a narrow congenital bronchobiliary fistula.
  • The narrowness of the fistula is hypothesized to be the reason for the patient's asymptomatic long survival.
  • This case is the fifth reported adult diagnosis and the oldest at 65 years.

Implications:

  • This case expands the known age range for adult diagnosis of CBBF.
  • It highlights the possibility of late diagnosis in adults with CBBF, particularly if the fistula is narrow.
  • Further research into the long-term implications and management of incidentally discovered CBBF in adults is warranted.

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