骨髓外漿細胞瘤並不常見，相對於瀰漫性個骨髓瘤而言，骨髓外漿細胞瘤的愈後較佳。在本報告之前，僅有一例報告過侵犯膽囊的骨髓外漿細胞瘤。本報告提出一名76歲的男性，自膽囊生出骨髓外漿細胞瘤並合併lgA單株副蛋白血症(monoclonal paraproteinemia)。經過四個月的放射線及化學治療，腫瘤明顯變小且血清中lgA值也恢復正常。

Extramedullary plasmacytomas are uncommon. They have a better prognosis than disseminated myeloma. Prior to this report, only one case of a plasmacytoma involving the gall bladder had been reported. We describe a 76-year-old man with a plasmacytoma arising from the gall bladder and associated with an lgA monoclonal paraproteinemia. After 4 months of radiotherapy and chemotherapy, the tumor decreased markedly in size and the serum IgA value returned to normal.