| extradural haematorrhachis | haematorrhachis externa |
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| haematorrhachis | A spinal haemorrhage. Synonym: haemorrhachis. Origin: haemato-+ G. Rhachis, spine Haematorrhachis externa, haemorrhage into the spinal canal external to the cord, either within or outside the dura. Synonym: extradural haematorrhachis, subdural haematorrhachis. (05 Mar 2000) |
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| haematorrhachis interna | A haemorrhage (area of internal bleeding) which extends into the spinal cord, occurs usually as a result of injury. (09 Oct 1997) |
| subdural haematorrhachis | haematorrhachis externa |
| extradural | External (outside) to the dura mater. (16 Dec 1997) |
| extradural anaesthesia | Anaesthetization, by local anaesthetics, of nerves near the spinal canal external to the dura mater; often refers to epidural anaesthesia, but may include paravertebral anaesthesia. (05 Mar 2000) |
| extradural haemorrhage | An accumulation of blood between the skull and the dura mater. Synonym: epidural haematoma. (05 Mar 2000) |
| extradural mass | <radiology> Disc, haematoma (traumatic fracture), metastasis (epidural, bony), abscess, neurofibroma, lipoma, arachnoid cyst (12 Dec 1998) |