Hepatocellular carcinoma treated by transcatheter arterial embolization: progress evaluated by computed tomography

Area of Science:

• Radiology
• Hepatology
• Oncology

Background:

• Hepatocellular carcinoma (HCC) is a primary liver cancer.
• Transcatheter arterial embolization (TAE) is a common treatment for HCC.
• Understanding post-treatment imaging changes is crucial for patient management.

Purpose of the Study:

• To evaluate computed tomography (CT) findings after transcatheter arterial embolization (TAE) in patients with hepatocellular carcinoma (HCC).
• To characterize early and delayed imaging changes and identify potential complications.

Main Methods:

• Computed tomography (CT) scans were performed on 50 patients with HCC undergoing 65 TAE procedures.
• Imaging analysis focused on nonenhanced and enhanced areas, presence of gas bubbles, and development of new lesions.
• Complications were documented within two weeks post-embolization.

Main Results:

• Low-density areas were observed in 62/65 embolizations within two weeks, often accompanied by gas bubbles in 60%.
• Enhanced lesions, suggestive of recurrence or new tumor growth, developed in 15/22 patients within 3-6 months.
• Early complications included liver and spleen low-density areas, gallbladder thickening, pancreatic swelling, and fluid collections.

Conclusions:

• CT imaging reveals characteristic early changes after TAE for HCC, including low-density areas and gas.
• The development of enhanced lesions post-TAE necessitates vigilant follow-up for HCC recurrence.
• Recognizing early complications is vital for timely intervention and improved patient outcomes.