Intracranial Solitary Extraskeletal Plasmacytoma Resembling Meningioma

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Abstract
• A patient had an intracranial solitary extraskeletal plasmacytoma (SEP). To date, only 12 similar cases have been reported in the English literature. This report includes the first description of computed tomographic findings in a patient with intracranial SEP. There is a striking similarity between the features of intracranial SEP and meningiomas. A detailed comparative study of the features of these two neoplasms was done. The findings indicate that the age and sex distribution, clinical features, location of the tumors, roentgenographic findings, and even the gross pathologic nature of the two neoplasms are very similar. The course and prognosis, however, are probably different. Intracranial SEP, although rare, should be included in the differential diagnosis of brain tumors that arise in areas where meningiomas commonly arise.