TY - JOUR AU - Gong, Jing-Shan AU - Kang, Wen-Yan AU - Zhu, Jin AU - Xu, Jian-Min PY - 2012 TI - A hole in the skull: CT manifestations of a solitary plasmacytoma in skull JF - Quantitative Imaging in Medicine and Surgery; Vol 2, No 1 (March 14, 2012): Quantitative Imaging in Medicine and Surgery Y2 - 2012 KW - N2 - Plasmacytoma can present as multiple myeloma, solitary plasmacytoma of the bone (SPB), or extramedullary plasmacytoma. SPB is a rare entity that composes of malignant plasma cells and involves the bone to form only one or two lesions without evidence of disease dissemination. It accounts for only 4% of malignant plasma cell tumors. We report a case of SPB in the skull in a 59-year-old male. CT scan revealed an 8 cm × 9 cm osteolytic lesion on the scalp of skull with a well demarcated margin. A cake-like mass was revealed at CT soft tissue window. The mass was completely excised and histological examination revealed plasmacytoma. The diagnosis of SPB was established after ruling out multiple myeloma. UR - https://qims.amegroups.org/article/view/112