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Primary multiple spinal extradural hydatid cysts. Case report and review of the literature [corrected].

In this paper a patient with primary multiple extradural hydatid disease is described. He had no neurological deficits, although there were numerous hydatid cysts located at the thoracic 7-9 level extradurally. Nuclear magnetic resonance (NMR) was used for what would appear to be the first time for the diagnosis of spinal hydatid disease.