Phenotype of midfacial pain in 12 new cases—A multidisciplinary idiopathic facial pain syndrome

This study provides preliminary evidence for a distinct phenotype of idiopathic midfacial pain that is not caused by rhinosinusitis, stomatognathic disorders, or facial manifestations of primary headaches. Our data call for prospective studies on this type of idiopathic facial pain for future International Classification of Headache Disorders and International Classification of Orofacial Pain editions.