BackgroundSolitary plasmacytoma of the liver is a very rare and aggressive form of plasma cell dyscrasia. To the best of our knowledge, very few cases have been reported without systemic disease. We reported a rare case of hepatic solitary plasmacytoma that successfully responded to fractionated stereotactic radiotherapy.Case presentationA 64-year-old white French man had monoclonal gammopathy of the immune globulin G lambda type; he developed a cholestasis and cytolysis with the discovery of a subscapular nodule. A biopsy showed plasma cells and, for several reasons, the decision was made to use the fractionated stereotactic radiotherapy strategy. After 20 months, he is asymptomatic and the immune globulin G component has completely disappeared.ConclusionWe suggest considering Cyberknife® radiosurgery as an option for the treatment of hepatic solitary plasmacytoma.

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