PMC5813711_01
a Lateral dynamic myelographic image demonstrating the site of CSF leakage at T7/T8 (white arrow), with contrast medium observed spreading within epidural space (white arrow heads) from subarachnoid space (black arrowheads). b. Lateral CT myelographic image at T7/T8 demonstrating a partially calcified disc (white arrow). c. Axial CT myelographic image at T7/8 level demonstrating a collection of ventral epidural fluid (black dotted circle) and a partially calcified disc (white arrow)
40981_2016_73_Fig1_HTML.jpg
PMC5813711_01_40981_2016_73_Fig1_HTML.jpg
Fig1
Dynamic myelography demonstrated the leakage of contrast medium into the ventral epidural space from the subarachnoid space at the T7/T8 intervertebral level (Fig. 1a). By reviewing images from both CT and dynamic myelography, we suspected that the sharply protruding calcified intervertebral disc had ruptured the ventral side of the dura mater, allowing for CSF to leak through the tear into the ventral epidural space (Fig. 1b, c). 
a Fluoroscopy-guided transforaminal EBP through bilateral T8 nerve roots (lateral view. b After contrast medium injection to confirm the epidural space (white arrowheads) (anteroposterior view. c Post-TFEBP spinal CT image at T7/T8 disc level demonstrating extension of injected blood through the entire epidural space (black arrowheads).The white arrow shows a partially calcified disc
40981_2016_73_Fig2_HTML.jpg
PMC5813711_01_40981_2016_73_Fig2_HTML.jpg
Fig2
Diffusion was confirmed by real-time fluoroscopic imaging (Fig. 2a, b). T7/T8 nerve root level (Fig. 2c). The patient was rested in a prone position for 3 h and then in a supine position until the next morning the same as previous procedures. 