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Two rare lumbar tumours with unusual MRI characteristics
I Aprile1, C A Scott, D Cervesato
1Department of Neuroradiology, General Hospital S. Maria della Misericordia, Udine, Italy.
Neuroradiology
|August 10, 2000
Abstract:
We present two rare lumbar lesions with similar MRI features: high signal on T1-weighted and proton density images and low signal on T2-weighted images; a melanotic schwannoma, and a giant-cell tumour-like lesion. Melanin in the first case and haemosiderin and metahaemoglobin in the second were responsible for the MRI characteristics.