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3. Intraspinal syphilitic gumma causing spinal cord compression;Coll;Arq Neuropsiquiatr,1979
4. Granulomatous lesions of the spinal epidural space;Dayanada;Neurology,1965
5. Epidural tuberculous abscess simulating herniated lumbar intervertebral disc: a case report;Decker;Ann Surg,1959