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Table 4 Magnetic resonance imaging (MRI) and computed tomography (CT) findings

From: Clinical and imaging characteristics in patients undergoing surgery for lumbar epidural lipomatosis

Level Number of total cases Shape of the dural sac on MRI Saucerization on CT
Circular Square stellate “Y-sign” laminae Posterior vertebral body
L2 7 6 1 0   0
L2–3 7 6 1 0 0  
L3 15 10 5 0   0
L3–4 15 9 6 0 3  
L4 16 5 10 0   6
L4–5 16 3 13 0 12  
L5 16 8 8 0   0
L5-S1 10 0 2 8 10  
  1. L lumbar, S sacral