A Case Report of Giant Liver Cell Adenoma

Tadahiko Enoki, Nobuyoshi Morita, Hiroshi Hiraoka, Fumihito Aikawa, Tetsuro Kobayashi, Sato Iio, Tsuyoshi Takahashi, Kensuke Esato

The First Department of Surgery, Yamaguchi University School of Medicine

We report a case of giant liver cell adenoma. A 21-year-old woman complained of an epigastric painless tumor. The patient had never taken any hormonal drugs such as contraceptives. Preoperative examination revealed a hypervascularized liver tumor in the medial segment, and left lobectomy was performed. Macroscopically, the tumor was encapsulated by a fibrous capsule and its boundary was distinct. Although the lateral segment was atrophic, the right lobe was almost normal and no daughter nodules were detected macroscopically and ultrasonographically. Histologic examination of the surgical specimen showed cord-like growth of tumor cells, which resembled hepatocytes and were devoid of any atypism and capsular invasion. Furthermore, no portal triad could be observed. A cirrhotic appearance was not seen in the non-tumorous part of the liver. These findings were identical with those of liver cell adenoma.

Key words
benign liver tumor, liver cell adenoma

Reprint requests
Tadahiko Enoki The First Department of Surgery, Yamaguchi University School of Medicine
1144 Kogushi, Ube, 775 JAPAN

Accepted
March 11, 1992

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