Summary: history and imaging findings
| Patient No. | Age/Sex | Time Between LP and MR Imaging | Post-LP Symptoms Leading to Spine MR Imaging | Level of EDC | EDC T1 SI Relative to CSF | EDC Postcontrast SI Relative to CSF | EDC T2 SI Relative to CSF |
|---|---|---|---|---|---|---|---|
| 1 | 2 y 5 months/M | 1 day | LE pain, decreased LE reflexes | T/L | Low | High | |
| 2 | 1 y 11 months/M | 1 day | Refusal to walk, pain with back straight | T/L/S | Low | High | |
| 3 | 11 y/M | 1 day | Back and leg pain, right LE numbness | T/L | Low | High | |
| 4 | 6 months/F | 4 days | Decreased LE motion | T/L | Low | High | |
| 5 | 6 y 11 months/M | 4 days | LBP, unable to stand up, paraspinal muscle spasms | T/L/S | Low | High | |
| 6 | 5 y 8 months/M | 3 days | Back pain, inability to stand straight/walk | At least T10-L5 | Low | No CE | High, minimal stranding |
| 7 | 1 y 5 months/F | 4 days | Abnormal gait | T/L | Low | Mild dural CE | High |
| 8 | 8 y 9 months/F | 1 day | Severe LBP, stooped posture | At least T11-S1 | Low | High | |
| 9 | 11 y 10 months/M | Unknown | LBP | At least T9-L4 | Low | High | |
| 10 | 3 y 2 months/F | 1 day | Refusing to walk, back/knee pain, weak LE | T/L | High | High | |
| 11 | 1 y 5 months/M | 2 days | Back pain, refusal to walk | At least T6-L5 | Low | High | |
| 12 | 1 y/M | 4 days | Increased inability to walk, pain on LE movement | T/L | Low | High | |
| 13 | 4 y 7 months/M | 1 day | Back/LE pain, thigh/paraspinal muscle spasm | T/L/S | Mildly high | High | |
| 14 | 5 y 5 months/M | 1 day | Severe back/LE pain, refusal to walk | At least T7-S1 | Low | High | |
| 15 | 12 y 10 months/F | 2 days | Increased paresthesias, weakness in LE | T/L | Low | No CE | High |
| 16 | 9 y 2 months/M | 7 days | Back/LE pain, recurring meningeal signs | C/T/L | Low | Mild CE | High |
| 17 | 7 y 8 months/M | 3 days | HA, LE stiffness, back pain, vomiting/meningeal signs | T/L | Low | No CE | High |
| 18 | 2 y 11 months/M | 1 day | Increased weakness, back/LE pain, unsteady gait | T/L | Minimally high | High | |
| 19 | 1 y 4 months/M | 2 days | Inability to walk/stand | T/L | Low | High | |
| 20 | 7 y 2 months/F | 1 day | Back pain | C/T/L | High | Very high | |
| 21 | 6 y 11 months/M | 2 days | Ataxia, leg pain | T/L/S | Low | Minimal CE | High |
| 22 | 4 y 7 months/F | 3 days | Right LE weakness, back pain | T/L | Low | Mild CE | High |
| 23 | 13 y 1 month/F | 3 days | Severe back/LE pain | At least T11-L4 | Low | High | |
| 24 | 4 y 3 months/M | 1 day | Bilateral hip-to-thigh pain | L | Minimally low, anterior enhancement | ||
| 25 | 2 y 7 months/M | 4 days | Back and leg pain, stooped posture | T/L | Low | High |
Note:—SI indicates signal intensity; LE, lower extremity; LBP, lower back pain; HA, headache; T, thoracic; L, lumbar; S, sacral; C, cervical; CE, contrast enhancement.