Combined Therapy with TAE and Radiofrequency Ablation is Effective for Multiple Liver Metastases of Malignant Hemantiopericytoma: A Case Report and Review of the Literature

Shohei Kondo, Hisashi Onodera, Toshimi Kaido, Seiji Yamasaki and Masayuki Imamura

Department of Surgery & Surgical Basic Science, Kyoto University

We report a case of malignant hemangiopericytoma (MHP) in a 55-year-old man. Six years after the primary retroperitoneal tumor was excised, multiple metastases occurred in the liver, kidney, urinary bladder, lung, bone, left adrenal gland, cerebellum, and gluteus muscle. Initial liver metastases were limited to the right lobe 3 years after the excision of the primary retroperitoneal tumor, and were surgically resected. Two years later, multiple metastases occurred in both lobes of the liver. Since no indication for surgical resection was seen, we conducted TAE for metastatic tumors in consideration of the hypervascular tumor. Most tumors were almost completely necrotized by TAE. Radiofrequency ablation was used to treat incompletely necrosis. All treated tumors had disappeared on dynamic CT. No new liver metastasis has developed in the 1.8 years since treatment. We suggest here that TAE should be selected first in treating unresectable MHP liver metastasis and that radiofrequency ablation be used in cases where TAE is not sufficiently effective.

Key words
malignant hemangiopericytoma, TAE, radiofrequency ablation

Reprint requests
Shohei Kondo Department of Surgery & Surgical Basic Science, Kyoto University 54-shogoin-Kawara-cho, Sakyo-ku, Kyoto, 606-8507 JAPAN

Accepted
November 27, 2001

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