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KMID : 0613320000060020061
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Journal of the Korean Bone and Joint Tumor Soceity
2000 Volume.6 No. 2 p.61 ~ p.68
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Solitary Plasmacytoma of the Bone: Radiologic Findings
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Yoon Choon-Sik
Kim Myung-Joon
Ahn Chang-Soo
Suh Jin-Suck
Shin Kyoo-Ho
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Abstract
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Purpose : We examined the patients to evaluate the radiologic findings of solitary plasmacytoma of the bone.
Materials and Methods : We retrospectively reviewed radiologic findings of 9 cases with solitary plasmacytoma of the bone (SPB) for recent 5 years, but 2 cases were not included this study due to an abnormal finding of bone marrow and another 2 cases were not included due to an abnormal manifestations of computed tomography (n=1) and MRI (n=1).
Results : Among 5 cases, 4 cases had an osteolytic bone destruction and 1 case had an osteosclerotic bone destruction on the plain radiograph. Computed tomography and MRI showed more informations about trabeculated bone destruction and the soft-tissue extension of the lesion comparing to plain radiographs. The MRI finding of SPB in 4 cases showed a relatively high signal intensity on T1-weighted image and intermediate signal intensity on T2- weighted image, on which the signal intensity of the lesion is slightly higher than that of the muscle. One case had an extensive soft-tissue involvement and multiple necrosis, which presented iso to low signal intensity on T1-weighted image and high heterogeneous signal intensity on T2-weighted image. The Gadolinium-enhanced T1-weighted images of 5 cases showed diffusely strong enhancement of the lesion except on the necrosis areas.
Conclusion : Computed tomography and MRI may present some characteristics of SPB and demonstrate another foci of plasma cell infiltrates, so these can be helpful for the diagnosis and treatment of SPB.
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KEYWORD
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Plasmacytoma, Roentgenogram, Computed tomography, MRI
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