We thank Dr Bressman and her colleagues for their comments on our report1 and would like to elaborate on several points.
The most striking feature of the 11-year-old girl with segmental dystonia was the sudden development of permanent trunk dystonia. This led us to hypothesize that the cause was psychogenic. After 34 months of evolution, she still had segmental dystonia. We agree that the report by Bressman et al,2 published before the identification of the DYT1 mutation to which we referred, described Ashkenazi patients with segmental dystonia who carried the DYT1 haplotype, but did not have the leg involvement observed in our patient.
Dürr A, Brassat D, Vidailhet M, Brice A. In reply. Arch Neurol. 2001;58(4):681–682. doi:
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