Hepatic haemangioma: common and uncommon imaging features

Area of Science:

• Radiology
• Hepatology
• Pathology

Background:

• Hepatic haemangiomas are the most common non-cystic liver lesions.
• They are frequently discovered incidentally.
• Diagnostic challenges can arise in specific imaging scenarios.

Purpose of the Study:

• To correlate radiological appearance with histological subtypes of hepatic haemangiomas.
• To identify atypical features crucial for diagnosis.
• To explore interactions between haemangiomas and adjacent liver tissue.
• To discuss pediatric hepatic haemangiomas and differentiate from angiosarcoma.

Main Methods:

• Review of radiological imaging of hepatic haemangiomas.
• Correlation of imaging findings with histological data.
• Analysis of atypical imaging presentations.
• Examination of cases involving pediatric patients and hepatic angiosarcoma.

Main Results:

• Typical radiological features of hepatic haemangiomas align with three histological subtypes.
• Atypical imaging findings require specific diagnostic consideration.
• Vascular haemangiomas exhibit interactions with surrounding hepatic parenchyma.
• Distinctive features of pediatric hepatic haemangiomas were observed.

Conclusions:

• Radiological assessment of hepatic haemangiomas should consider typical and atypical features.
• Understanding histological correlations enhances diagnostic accuracy.
• Awareness of interactions with liver parenchyma and pediatric variations is essential.
• Distinguishing haemangiomas from malignant lesions like angiosarcoma is critical.