吾人報告一例罕見之右側骨盆癌經下腔靜脈轉程至右心腔室病例。病人為-16歲女學，其症狀為右下肢疼痛約一週之久，因同時有胸悶及氣促，心臟超音波心圖檢查意外發現腫瘤。病人雖接受姑息性心臟腫瘤切除手術及化療，仍於六個月後因多發性轉移而過世。

We report a rate case of osteogenic sarcoma of the right pelvis with intracavitary metastases to the right heart through tumor growth along and within the inferior venna cava. Excision of the cardiac metastases was done as a palliative procedure, although the patient died of disseminated disease 6 months later.