Table 4. Number of anatomical sites/structures involved in 230 spinal CE cases.

Number of anatomical sites/structures involved* (n = 230)	Number of cases (%)	‘Dumbbell lesion’ (%)
1	74 (32.2)	-
2	51 (22.2)	20/51 (39.2)
3	53 (23.0)
4	46 (20.0)	85/105 (81.0)
5	6 (2.6)
‘Dumbbell lesion’	105 (45.7)
without bone involvement	20 (19.0)
( = 2 structures: extradural-intraspinal & paravertebral)
with bone involvement	85 (81.0)
(>2 structures)

^*according to the 7 entities defined in table 4.