,COURSE:, MRI T-L-spine, 5/24/97, revealed a 6 x 8 x 25 soft tissue mass at the L1 level posterior to the tip of the conus medullaris and extending into the canal below that level. 
,COURSE : , MRI T - L - spine , 5/24/97 , revealed a 6 x 8 x 25 soft tissue mass at the L1 level posterior to the tip of the conus medullaris and extending into the canal below that level .