Systematic Chart Review of Carotidynia Patients

Inclusion Criteria: * acute cervical tenderness or neck pain fulfilling the characteristics of an idiopathic neck pain syndrome as defined by the International Headache Society in 1988 * the performing of a diagnostic imaging like MRI, CT or US of the cervical area with a dedicated vessel analysis * unilateral or bilateral abnormalities of common carotid, carotid bifurcation or internal carotid arteries on dedicated vessel imaging. Exclusion Criteria: * patients without imaging, or without dedicated vessel analysis * patients presenting with pain caused by a clearly identified vascular disease on dedicated vessel analysis imaging such as carotid occlusion, carotid dissection, vasculitis like giant cell arteritis. * patients with no abnormality on cervical or vessel imaging