1. Paraplegia due to spontaneous extraretention. The extradural haemorrhage in this case extended from L2 to L5 vertebrae. The patient made a good recovery;gradually resulted in paraparesis; urinary Ainslie, J.P.;Alderman; reported a 57 year old male patient who developed severe pain when he rose from a chair,1958
2. dural or subdural haemorrhage;British Journal of Surgery
3. Extradural spinal-cord hematoma: report of a case due to dicumarol and review of the literature;Alderman, D.B.;New England Journal of Medicine,1956
4. Chronic spontaneous spinal epidural hematoma. Report of two cases. Journal of He was on anticoagulant therapy as a prophylaxis against recurrent myocardial infarction. The pain improved over a period of days only to recur later with a radiating character and ending up with paraparesis. At operation the extradural haemorrhage extended from LI to L3 vertebrae;Boyd, H.R.; Pear, B.L.,1972
5. Brion, S., Netsky, M. G., and Zimmerman, H. M. (1952).