Hepatic cavernous hemangioma. CT findings and pathological basis

Area of Science:

• Radiology
• Hepatology
• Oncology

Background:

• Hepatic hemangiomas are common benign liver tumors.
• Accurate CT diagnosis is crucial for appropriate patient management.
• Distinguishing hemangiomas from other liver lesions can be challenging.

Purpose of the Study:

• To identify pathognomonic CT findings for hepatic hemangioma.
• To correlate CT features with pathological findings.
• To evaluate the diagnostic utility of specific CT enhancement patterns.

Main Methods:

• Retrospective analysis of CT scans from 113 pathologically confirmed hepatic hemangiomas.
• Correlation with 52 resected specimens and 8 autopsies.
• Comparison with CT scans of 506 other liver lesions.

Main Results:

• Mottling enhancement in surrounding hepatic parenchyma was observed exclusively in hemangiomas.
• This enhancement pattern correlated with dilated vascular spaces adjacent to the tumor.
• Distinct thick-wall and thin-wall hemangioma types were identified and discussed.

Conclusions:

• Mottling enhancement is a pathognomonic sign for hepatic hemangioma on CT.
• This CT finding aids in differentiating hemangiomas from other liver tumors.
• Understanding CT features improves diagnostic accuracy for hepatic hemangioma.