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Congenital dilatation of the bile duct: changes in diagnostic tools over the past 19 years
Junji Takaya1, Masatoshi Muneyuki, Daisuke Tokuhara
1Departments of Pediatrics and Second Surgery, Kansai Medical University, Moriguchi, Osaka, Japan. takaya@takii.kmu.ac.jp
Insights
Improved diagnostic tools now allow for early, non-invasive detection of congenital dilatation of the bile duct (CDBD) and anomalous pancreaticobiliary junction (PBJ) in children, shortening diagnosis times.
Area of Science:
- Pediatric Surgery
- Diagnostic Imaging
- Gastroenterology
Background:
- Congenital dilatation of the bile duct (CDBD) diagnosis has improved with advancements in medical technology.
- Early diagnosis in children is now more feasible.
Purpose of the Study:
- To review the presentation and diagnostic methods for CDBD in children.
- To analyze changes in diagnostic tools and timelines over time.
Main Methods:
- Retrospective review of medical records for 34 children with CDBD treated between 1982 and 2000.
- Analysis of diagnostic imaging techniques including ultrasonography, spiral CT, and MRCP.
Main Results:
- Abdominal pain and vomiting were common presenting symptoms (66% each).
- Ultrasonography was the primary diagnostic tool (85%), aiding early detection.
- Diagnosis time decreased significantly from 46 days (1982-1988) to 13 days (1995-2000).
- Anomalous pancreaticobiliary junction (PBJ) was found in 44% of cases.
Conclusions:
- Modern diagnostic advancements enable immediate, non-invasive identification of CDBD and PBJ.
- Improved imaging facilitates timely diagnosis and pre-operative assessment in pediatric patients.
Background:
Because of recent improvements in diagnostic procedures, many cases of congenital dilatation of the bile duct (CDBD) have been diagnosed in early life. To determine the mode of presentation and changes in diagnostic tools, medical records of 34 children (25 girls, nine boys) with CDBD who were treated between 1982 and 2000 were reviewed.
Results:
The age at presentation ranged from 0 to 16 years (median 4.9 +/- 0.7 years), with two patients being diagnosed using prenatal ultrasonography. Of the 32 patients diagnosed post-natally, 21 (66%) complained of abdominal pain. There were also 21 (66%) cases of vomiting. Sixteen patients (50%) experienced both these symptoms. Ten (31%) cases presented with jaundice and three (9%) presented with a palpable mass. Ultrasonography was used as a diagnostic tool in 29 cases (85%). The finding of a dilated common bile duct on abdominal ultrasonography was helpful for early diagnosis. Spiral computed tomography was also a useful and accurate imaging method for diagnosis. Anomalous pancreaticobiliary junction (PBJ) was demonstrated in 44% of patients with CDBD. Magnetic resonance cholangiopancreatography, which can be performed non-invasively, is useful for the diagnosis and pre-operative assessment of CDBD in children. The average length of time from presentation to diagnosis could be shortened from 46 days (1982-1988) to 13 days (1995-2000).
Conclusion:
Recent improvements in diagnostic procedures make immediate, non-invasive diagnosis of CDBD and PBJ possible.