title: Atypical nummular headache or circumscribed migraine: the utility of pressure algometry.
abstract: A peripheral mechanism has been proposed for nummular headache; however, there have been descriptions of atypical features resembling migraine. The authors describe a case in which algometry assessment facilitated the discrimination between atypical nummular headache and circumscribed migraine. A 21-year-old woman presented with a history of focal episodic pain in a circumscribed area on the left frontal region. The algometry study showed a unilateral and diffuse decrease of the pain pressure thresholds with frontal predominance, as has been proposed for migraine patients. This result led the authors to introduce a more specific preventive therapy with topiramate, with significant relief. In conclusion, cartographic investigation of pressure pain sensitivity is a simple tool that can help to differentiate between nummular headache and migraine. Further confirmatory investigations are needed.
authors: Johanna
authors: J
authors: Barón
authors: Cristina
authors: C
authors: Rodríguez
authors: Marina
authors: M
authors: Ruiz
authors: María Isabel
authors: MI
authors: Pedraza
authors: Ángel Luis
authors: ÁL
authors: Guerrero
authors: Pascal
authors: P
authors: Madeleine
authors: María Luz
authors: ML
authors: Cuadrado
authors: César
authors: C
authors: Fernández-de-Las-Peñas
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006261:Headache / Q000175:diagnosis / Q000628:therapy; D006801:Humans; D008881:Migraine Disorders / Q000175:diagnosis* / Q000628:therapy; D010147:Pain Measurement / Q000379:methods / Q000706:statistics & numerical data*; D011312:Pressure; D055815:Young Adult
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