Biliary Duct Hamartomas: A Systematic Review.

Area of Science:

• Hepatology
• Gastroenterology
• Radiology

Background:

• Biliary duct hamartomas are benign intrahepatic bile duct lesions.
• These lesions often present as incidental findings but can be mistaken for malignant tumors due to overlapping imaging characteristics.
• A clear clinical profile and diagnostic guidelines are lacking.

Purpose of the Study:

• To provide a comprehensive clinical profile of biliary duct hamartomas.
• To analyze diagnostic modalities, treatment choices, and patient outcomes.
• To propose an improved diagnostic strategy for these lesions.

Main Methods:

• A structured systematic review of 139 reported cases of biliary duct hamartomas.
• Analysis of patient demographics, clinical presentation, laboratory data, and imaging findings.
• Evaluation of diagnostic techniques and treatment outcomes.

Main Results:

• Biliary duct hamartomas typically present with mild symptoms and non-specific imaging findings.
• Biopsy may be necessary for lesions with "red flag" signs like weight loss or lesion growth.
• Many patients undergo surgery despite the benign nature of the lesions due to diagnostic uncertainty.

Conclusions:

• A three-step approach involving "red flag" symptom assessment, specialized imaging, and targeted biopsy is recommended.
• Further research is needed to improve understanding and reduce unnecessary invasive procedures.
• Enhanced imaging technology and quality are crucial for accurate diagnosis and improved patient care.