title: Unusual response to extradural analgesia in the presence of an intradural spinal tumour.
abstract: A patient is presented in whom indications of the presence of an intradural, extramedullary tumour became apparent during the induction of an extradural block. It is suggested that a combination of signs should arouse suspicions of such a tumour close to the puncture site. Pain within an area covered by an extradural block does not indicate necessarily a supraspinal cause for the pain.
mesh_terms: D000767:Anesthesia, Epidural / Q000009:adverse effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D009463:Neuroma / Q000175:diagnosis*; D010292:Paresthesia / Q000209:etiology; D013120:Spinal Cord Neoplasms / Q000175:diagnosis*; D013900:Thoracic Nerves; D013997:Time Factors