From 1996, we carried out body hypo-fractionated stereotactic radiotherapy for 16 tumors of 14 patients. There were four primary lung cancer and eight metastatic lung cancer and two hepato-cellar carcinoma. Among ten cases of which respiratory movement of the tumor were observed by fluoroscopy, average movement in cranio-caudal direction was 4.4 mm. Although tumor regrowth was observed in two cases, both tumors were successively controlled by reirradiation with stereotactic radiotherapy. Seven patients including six with metastatic lung tumors survived longer than 3-years, Two portal tumor thrombi were decreased in size and recanalizations of the portal veins were obtained. Stereotactic radiotherapy is considered to be effective both for primary and metastatic tumors.

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