DURAL INTRACRANIAL PLASMA CELL NEOPLASMS MIMICKING MENINGIOMA

Abstract

Meningioma is the most common Dural based tumours of CNS. Plasma cell neoplasms rarely involve the CNS as Dural lesions and occasionally can arise from calvarium and skull base. They are characterized by clonal proliferation of plasma cells and have a benign course, being radiosensitive, unless associated with multiple myeloma. On imaging, the differential diagnosis is meningioma, metastasis, lymphoma, osteochondroma, infectious meningitis, plasma cell granuloma and sarcoma of the dura .We present a 70 year old male with extramedullary lesion in right parasagittal region mimicking meningioma on MRI and intraoperatively. Histopathological diagnosis was a solitary plasmacytoma. There was no evidence of multiple myeloma on complete work up. Intracranial plasmacytoma must be suspected in all patients with a solitary Dural mass, and in the differential diagnosis of meningeal tumours. The parasagittal location of the tumour and its extramedullary nature indicates a favourable prognosis and rare chances of progression to multiple myeloma.