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Click Sagittal Gadolinium contrast enhanced T1 weighted MRI of the thoracic spine. Vertebral metastasis of an adenoid cystic carcinoma with epidural extension, best seen on slice position [S]6[/S].

Click Sagittal T2 weighted MRI of the thoracic spine. Vertebral metastasis of an adenoid cystic carcinoma with epidural extension, best seen on slice position [S]6[/S].

Click Axial gadolinium-enhanced T1-weighted image at the level of the thoracic vertebral metastasis shows a typical curtain sign due to bony tumor extension into the anterior part of the epidural space. The curtain sign is due to the presence of the Trolard membrane with the median ligament attaching the dura to the bone while there is a dorsal displacement and loosening of the posterior longitudinal ligament. best seen on slice position [S]6[/S].