A 49-year-old female with severe jaundice and liver dysfunction was transported to our hospital. Computed tomography revealed a contracted liver and massive ascites. The patient had undergone living-donor liver transplantation. On day 16 post surgery, the liver biopsy was performed to check for acute transplant rejection reaction. As a complication, the patient had intra-abdominal bleeding with shock vital signs; therefore, underwent interventional radiology (IVR) procedures. On day 155 post surgery, she had elevated alanine aminotransferase levels and portal vein regurgitation visible on ultrasonography. Hepatic arteriography showed an intrahepatic arterioportal (AP) shunt near the previous coil embolization. The patient underwent IVR again. This case serves as a reminder to consider AP shunt during differential diagnosis in patients with postoperative liver damage after the liver biopsy.