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A tumour mass centred at T9 causes severe cord compression, the cord being displaced to the left side, occupying less than 25% of the cross sectional area of the spinal canal at this level. The tumour mass has two components, that within the dura is slightly hyperintense whereas that external to the dura extending through the T9/10 exit foramen is more hyper intense. Both components demonstrate similar vivid and sharply defined contrast enhancement, demonstrating a connection between the intra and extradural components. The mass extends from the superior border of T9 to the upper border of T10. The cord and spinal canal above and below down are normal.