Laparoscopic microwave ablation for giant cavernous hemangioma coexistent with diffuse hepatic hemangiomatosis: Two case reports.

Abstract

Background: Hepatic hemangioma represents the most common benign primary hepatic neoplasm. Although most such tumors are small and asymptomatic, giant cavernous hemangioma (GCH) is frequently symptomatic, and needs intervention. Moreover, diffuse hepatic hemangiomatosis (DHH) is not rare in the liver parenchyma adjacent to a GCH. The management strategy for hepatic hemangiomas can differ depending on the presence of associated hemangiomatosis and the amount and distribution of the residual hepatic parenchyma.

Case summary: Herein, we report two patients with GCH coexistent with DHH successfully treated by laparoscopic microwave ablation. The two GCHs were ablated completely and the ablated zone atrophied obviously in imaging follow-ups after ablation. Surprisingly, there was a trend toward gradual reduction and diminishment of DHH.

Conclusion: Thermal ablation treatment might be an effective and less invasive treatment for GCH coexistent with DHH around the hemangioma.