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November 1947

SPINAL EXTRADURAL CYSTReport of a Case, with Particular Reference to a Possible Diagnostic Aid

Author Affiliations


From the Neurosurgical Service and the Neuropathologic Laboratories of the Jewish Hospital of Brooklyn, Brooklyn.

Arch NeurPsych. 1947;58(5):593-600. doi:10.1001/archneurpsyc.1947.02300340064005

THE INTEREST in noninflammatory and non-neoplastic cysts of the spinal extradural space was initiated by the report of Elsberg, Dyke and Brewer1 in 1934. They described 4 cases of such a cyst encountered among 250 tumors of the spinal cord and evolved a clinical and roentgenologic syndrome which has proved to be diagnostic of the condition. They described the combination of signs and symptoms as follows:

The individual is an adolescent with the history of symptoms of a progressive spastic paraplegia. Pain is absent or is not a prominent symptom. The objective disturbances of sensibility are slight and their upper level is in the mid-thoracic dermatome. The manometric tests demonstrate a subarachnoid block with the characteristic spinal fluid changes of cord compression. Measurements on anteroposterior x-ray films show that the interpedicular spaces of three or more vertebrae are enlarged. The pedicles of the affected vertebrae, especially those of the