The purpose of this study is to evaluate the effectiveness and safety of a new biopsy track ablation device for liver biopsy.

Background:

• Percutaneous biopsy for hepatic masses has a potential risk of bleeding and peritoneal tumor seeding.
• A new device for biopsy track ablation has been invented to reduce the risk of bleeding and peritoneal tumor seeding.

Method:

• Routine percutaneous biopsy for hepatic masses is performed.
• Immediate after obtaining tissue, biopsy needle track is ablated with a new biopsy tract ablator.
• Immediate (with ultrasound) and 24 hours (with CT scan) after procedure, occurrence of complications is evaluated.

Inclusion Criteria:

• patients with a hepatic mass on CT scan or MRI
• patients who are referred for percutaneous biopsy of a hepatic mass
• patients with normal range of platelet count and coagulation test

Exclusion Criteria:

• pregnant women
• patients with ascites
• Uncooperative patients