Multicentric and isolated multifocal glioblastoma multiforme simulating metastatic disease

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Abstract
Single case reports of multicentric glioblastoma multiforme and multifocal glioblastoma multiforme tumours are presented. Multicentric glioblastoma multiforme tumours are those which have no macroscopic or microscopic connection. Multifocal gliomatous tumours, on the other hand, are those with either gross or microsopic continuity or evidence of cerebral spinal fluid spread and/or local metastases. The cerebral scintigram findings, cerebral angiogram studies and pathological description of these entities are presented. These lesions may be mistaken for metastases. In patients with multiple cerebral lesions multiple primary malignancies of brain should be considered when there is no clinical or radiographical evidence for extracranial primary neoplasms.