Von Meyerberg Complexes: An Underrecognized Predisposing Factor for Focal Nodular Hyperplasia-Like Lesions

Area of Science:

• Hepatobiliary pathology
• Gastrointestinal imaging
• Surgical pathology

Background:

• Von Meyerberg complexes (VMCs), also known as biliary hamartomas, are common ductal plate malformations.
• VMCs are generally considered benign incidental findings in routine histopathological or imaging examinations.

Observation:

• These lesions are frequently discovered during investigations for unrelated conditions.
• VMCs typically do not necessitate active medical intervention.

Findings:

• VMCs can occasionally be associated with the development of malignant masses.
• Rarely, VMCs may present as hypervascular benign masses, creating diagnostic uncertainty.

Implications:

• Accurate recognition of VMCs is crucial to differentiate them from neoplastic lesions.
• Understanding the potential for VMC transformation is important for patient management and surveillance strategies.