Computed tomography of hepatic cavernous hemangioma

Area of Science:

• Radiology
• Medical Imaging
• Hepatology

Background:

• Hepatic hemangiomas are common benign liver tumors.
• Accurate diagnosis is crucial to differentiate from malignant lesions.
• Computed tomography (CT) is a primary imaging modality.

Purpose of the Study:

• To evaluate the diagnostic accuracy of CT for hepatic hemangiomas.
• To define specific CT enhancement criteria for diagnosing hemangiomas.

Main Methods:

• Retrospective analysis of 50 hepatic hemangiomas in 38 patients.
• Sequential CT scanning after intravenous bolus contrast injection.
• Assessment of five key CT features: unenhanced density, peripheral enhancement, progressive opacification, delayed total opacification, and isodense appearance.

Main Results:

• A diagnostic criterion combining delayed opacification, isodense appearance, and at least two other features yielded 100% positive predictive value.
• 38 of 48 identified lesions displayed all five characteristic CT features.
• Larger hemangiomas showed significantly longer opacification times (p < 0.05).

Conclusions:

• CT, utilizing specific sequential enhancement patterns, is highly accurate for diagnosing hepatic hemangiomas.
• The defined CT criteria provide reliable identification of these liver lesions.
• This imaging approach aids in confident differentiation from other hepatic pathologies.