Angiomyomyelolipoma of the Liver -A Case Report-

Jota Watanabe, Takashi Nishizaki, Kenzo Wakasugi, Taro Nakamura, Ikuo Takahashi, Toshihiro Onohara, Tetsuo Ishikawa, Toshimitsu Matsuzaka, Hiroshi Kume, Yutake Fujinaga

Department of Surgery, Matsuyama Red Cross Hospital

We treated a 30-year-old man with angiomyomyelolipoma originating from the liver. Right hypochondralgia began one month before admission. Ultrasonography, CT scanning and MR imaging demonstrated characteristic features of a fat-rich tumor with a diameter of about 6.0 cm in the anterior segment of the liver. HBsAg and HCVAb were negative, alpha-feto-protein was 1 ng/ml and PIVKA-II was 0.0 ng/ml. Since this tumor was symptomatic and hepatocellular carcinoma could not be completely ruled out, hepatic resection ws performed, with good results. The histology revealed an admixture of vascular space, pleomorphic smooth muscle cells, adipose cells and prominent extramedually hematopoietic elements. Although angiomyomyelolipoma was benign, this type of tumor can be symptomatic and may increase in size. Therefore, surgical resection is warranted when this tumor is symptomatic and the surgery presents no untoward difficulty.

Key words
angiomyomyelolipoma, liver

Reprint requests
Jota Watanabe Department of Surgery, Matsuyama Red Cross Hospital
1 Bunkyoh-tyo, Matsuyama-city, 790-0826 JAPAN

Accepted
October 1, 1997

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