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  • Title: [Diagnosis of intramedullary spinal cord ependymomas and astrocytomas using magnetic resonance imaging: analysis of 15 cases].
    Author: Lin YZ, Zhang XL.
    Journal: Di Yi Jun Yi Da Xue Xue Bao; 2004 Jul; 24(7):847-8. PubMed ID: 15257925.
    Abstract:
    OBJECTIVE: To evaluate the magnetic resonance imaging (MRI) features of intramedullary spinal cord ependymomas(INSE) and astrocytomas. METHODS: Retrospective analyses of the MRI images were conducted in 15 cases of INSE and 10 cases of astrocytoma. RESULTS: MRI appearances were similar in the 2 types of neoplasms, both showing enlargement of the involved spinal cord segments, low signal and blurred boundary on T1-weighted imaging, and high signal on T2-weighted imaging. Peritumoral cyst formation were found in 16 patients. Contrast enhancement was homogeneous in 6 cases of ependymomas and 1 of astrocytoma, heterogeneous in 1 astrocytoma case, and no enhancement in 2 astrocytoma cases. CONCLUSION: MRI is helpful in the diagnosis and differential diagnosis of INSE and astrocytomas.
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