Table 3 Characteristics of neck pain in 20 patients with spontaneous cervical artery dissection.

Patient	Onset	Evolution	Quality	VAS	Location	Time course with headache
1	No neck pain	No neck pain	No neck pain	No neck pain	No neck pain	No neck pain
2	Acute	Continuous	Throbbing	7	Ipsilateral posterior	Simultaneous
3	Acute	Continuous	Constrictive	10	Ipsilateral posterior	After headache
4	Acute	Continuous	Constrictive	5	Ipsilateral posterior	No headache
5	Progressive	Intermittent	Constrictive	7	Bilateral posterior	Simultaneous
6	No neck pain	No neck pain	No neck pain	No neck pain	No neck pain	No neck pain
7	Progressive	Continuous	Constrictive	8	Ipsilateral posterior	Simultaneous
8	Acute	Continuous	Constrictive	6	Bilateral posterior	Simultaneous
9	Progressive	Continuous	Constrictive	5	Ipsilateral posterior	After headache
10	Progressive	Continuous	Constrictive	6	Bilateral posterior	No headache
11	Progressive	Intermittent	Throbbing	6	Ipsilateral posterior	Before headache
12	No neck pain	No neck pain	No neck pain	No neck pain	No neck pain	No neck pain
13	No neck pain	No neck pain	No neck pain	No neck pain	No neck pain	No neck pain
14	No neck pain	No neck pain	No neck pain	No neck pain	No neck pain	No neck pain
15	Progressive	Continuous	Constrictive	7	Bilateral posterior	Simultaneous
16	Acute	Continuous	Constrictive	7	Ipsilateral lateral	Simultaneous
17	Progressive	Continuous	Throbbing	8	Ipsilateral posterior	Before headache
18	Acute	Continuous	Throbbing	7	Ipsilateral posterior	After headache
19	Acute	Continuous	Constrictive	6	Ipsilateral posterior	After headache
20	No neck pain	No neck pain	No neck pain	No neck pain	No neck pain	No neck pain

VAS, Verbal Analogue Scale.