Clinical characteristics of nummular headache and differentiation between spontaneous and posttraumatic variant: an observational study.
Javier TrigoDavid Garcia AzorinEnrique Martinez PiasÁlvaro SierraAlba ChavarríaAngel Luis GuerreroPublished in: The journal of headache and pain (2019)
Cranial trauma is not a rare trigger of NH. Patients with post-traumatic forms are older and the presence of allodynia is more frequent.