case_images: PMC6167793_01
case_images: CT bone window image of L4-5 which does not clearly demonstrate evidence of spinal epidural lipomatosis
case_images: 12998_2018_203_Fig1_HTML.jpg
case_images: PMC6167793_01_12998_2018_203_Fig1_HTML.jpg
case_images: Fig1
case_images: The patient presented with computed tomography; revealing suspected left foraminal disc protrusion at L4-5 and bilateral L4-5 and L5-S1 facet hypertrophy, but no bony spinal stenosis (Fig. 1).
case_images: case 1, visualization of the "Y" sign indicating grade III compression
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case_images: PMC6167793_01_12998_2018_203_Fig2_HTML.jpg
case_images: Fig2
case_images: Inspection of the patient's T1 weighted MRI revealed the grade III pathognomonic "Y" sign (Fig. 2).
case_images: case 1, measurement of the "Y" sign using the modified method. "A" demonstrates the dural sac as measured with the modified method, "B" demonstrates the spinal canal, and EF is the difference between these measurements
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case_images: PMC6167793_01_12998_2018_203_Fig3_HTML.jpg
case_images: Fig3
case_images: A measurement of the patient's epidural fat using the modified method (a method used when a straight anterior to posterior measurement is not possible) developed by Borre et al. revealed the following: dural sac / epidural fat value of 0.19 and epidural fat / spinal canal value of 83.9% as measured by the authors (Fig. 3).
case_images: PMC6167793_02
case_images: case 2, epidural fat measurement pre LESI, demonstrating a grade 0, or normal finding. "A" demonstrates the spinal canal, "B" demonstrates the dural sac, and EF is the difference between these measurements. The L4-5 disc herniation is not visualized on this image
case_images: 12998_2018_203_Fig4_HTML.jpg
case_images: PMC6167793_02_12998_2018_203_Fig4_HTML.jpg
case_images: Fig4
case_images: Radiographs demonstrated minimal spondylosis at the L4 and L5 vertebral bodies and a MRI demonstrated a mild posterior central disc herniation at L5-S1, but no evidence of SEL (Figs. 4 & 5).
case_images: case 2, pre LESI imagine without measurements. The L4-5 disc herniation is not visualized on this image
case_images: 12998_2018_203_Fig5_HTML.jpg
case_images: PMC6167793_02_12998_2018_203_Fig5_HTML.jpg
case_images: Fig5
case_images: Radiographs demonstrated minimal spondylosis at the L4 and L5 vertebral bodies and a MRI demonstrated a mild posterior central disc herniation at L5-S1, but no evidence of SEL (Figs. 4 & 5).
case_images: case 2, post LESI imagine without measurements
case_images: 12998_2018_203_Fig6_HTML.jpg
case_images: PMC6167793_02_12998_2018_203_Fig6_HTML.jpg
case_images: Fig6
case_images: When measured by the authors using the method developed by Borre et al., the dural sac diameter/epidural fat diameter was 1.07, and the epidural fat/spinal canal diameter was 48.3%, categorizing the patient as a grade I (borderline grade II) (Figs. 6 & 7).
case_images: case 2, epidural fat measurement post LESI, demonstrating a grade I (borderline grade II) SEL. "A" demonstrates the spinal canal, "C" and "D" demonstrates the EF on either side of the dural sac, and the dural sac is the difference between A and C + D
case_images: 12998_2018_203_Fig7_HTML.jpg
case_images: PMC6167793_02_12998_2018_203_Fig7_HTML.jpg
case_images: Fig7
case_images: When measured by the authors using the method developed by Borre et al., the dural sac diameter/epidural fat diameter was 1.07, and the epidural fat/spinal canal diameter was 48.3%, categorizing the patient as a grade I (borderline grade II) (Figs. 6 & 7).