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Table 2: MRI features of ISCMs, per-lesion basis, total of 70 lesions in 49 patients
Feature Prevalence
Location (n = 70) 
    Cervical 16 (23%)
    Cervicothoracic 2 (3%)
    Thoracic 40 (57%)
    Thoracic-conus 1 (1%)
    Conus 11 (16%)
Position (n = 62) 
    Central 23 (37%)
    Eccentric 35 (56%)
    Exophytic 4 (6%)
Morphology (n = 66) 
    Well-circumscribed 64 (97%)
    Ill-defined 2 (3%)
Cord expansion (n = 70) 
    Present 44 (63%)
    Absent 26 (37%)
Enhancement (n = 64) 
    Present 63 (98%)
    Absent 1 (2%)
Enhancement pattern (n = 63) 
    Homogeneous 31 (49%)
    Heterogeneous 31 (49%)
    Peripheral (ring) 1 (2%)
Size of enhancing lesion, mm, mean (range) 
    Anterior-posterior (n = 63) 6.5 (1–16)
    Transverse (n = 53) 7.3 (2–23)
    Superior-inferior (n = 63) 19.9 (2–114)
Longitudinal extent, No. of vertebral segments, mean (range) 
    Length of enhancement (n = 63) 1.4 (1–8)
    Length of cord T2 signal hyperintensity (n = 69) 4.5 (1–15)
    Ratio, T2 signal/enhancement (n = 63) 3.6 (1–14)
T2 signal intensity (n = 70) 
    Hyperintense 55 (79%)
    Hypointense 1 (1%)
    Isointense 14 (20%)
T1 signal intensity (n = 63) 
    Hyperintense 10 (16%)
    Hypointense 5 (8%)
    Isointense 48 (76%)
Cystic change (n = 70) 
    Intratumoral 2 (3%)
    Peritumoral 0 (0%)
Intratumoral hemorrhage (n = 70) 1 (1%)