Abstract
Accessory liver is a rare congenital abnormality. Only 77 case have been reported in the Japanese literature including or case.
A 74-year-old female was admitted to the hospital because of general fatigue. Various imaging methods revealed a tumor in the right subphrenic area. We suspected that this tumor was origniating in the liver or in the right adrenal gland.
Preoperative definite diagnosis was not made, but a possibility of co-existence of malignant lesions was not ruled out. So an operation was performed. Entering into the abdominal cavity, found a tumor adherent to the right adrenal gland and compression the right lobe of the liver. Macroscopically, and direct connection between the accessory liver the primary liver was found out. The tumor with the right adrenal gland was excised. The pathological examination of the resected tumor revealed the normal hepatic lubule and no bile stagnation. Furthermore, this tumor contained a hematoma surrounded with lepatic tissue. We considered that the blood vessels, portal vein and bile duct were communicated with the primary liver through a restiform part. However, it is still unclear why the hematoma was occurred.
