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Manuel Seijo-Martinez, MD, PhD; Maria Dolores García-Bargo, MD

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

We read with great interest the excellent review of trigeminal autonomic cephalgias (TAC) due to structural lesions reported by Favier et al.¹ A main concern in the management of patients with TAC is when to perform neuroimaging studies because secondary causes may appear in 3% to 5% of cases.² If a patient presents with typical TAC at a normal examination and the response to treatment is favorable, further diagnostic studies are probably not warranted. However, the clinician should be alert to atypical signs and symptoms, which should lead to appropriate testing.³

Favier et al recommend neuroimaging in all patients with typical TAC. This may be a questionable approach and perhaps not cost-effective in typical cases that show a good response to therapy. The 4 cases added by these authors were atypical with increasing headache and new neurological signs and symptoms, and further . . . [Full Text of this Article]

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Trigeminal Autonomic Cephalgias Due to Structural Lesions: A Review of 31 Cases
Irene Favier, Jorine A. van Vliet, Krista I. Roon, Ron J. W. Witteveen, Jan J. G. M. Verschuuren, Michel D. Ferrari, and Joost Haan
Arch Neurol. 2007;64(1):25-31.
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