• Hideki Nagashima, Atsushi Tanida, Ikuta Hayashi, Shinji Tanishima, Yoshiro Nanjo, Toshiyuki Dokai, and Ryota Teshima.
• Department of Orthopedic Surgery, Faculty of Medicine, Tottori University, Yonago, Japan. hidekin@med.tottori-u.ac.jp
• Br J Neurosurg. 2010 Oct 1;24(5):537-41.

AbstractSubdural haematomas co-existing in the cranium and spine are considered extremely rare. We report 2 cases demonstrating the condition described here with a review of literature. One of these 2 patients was the first case in which the spinal lesion was found before the cranial lesion. A 66-year-old man without trauma presented with paraparesis accompanied by severe leg pain. The patient was diagnosed as having spinal subdural haematoma extending from L1 to S1 vertebral levels with magnetic resonance images (MRI). Two days after admission, the patient developed disorientation and abnormal behavior; therefore, computed tomography (CT) of brain was performed, and chronic cranial subdural haematoma was observed. A 60-year-old man who developed headache showing gradually progressive was diagnosed as having cranial subdural haematoma on CT. Three days after admission, he became insomnolent due to severe low back pain radiating to ankle. On MRI, subdural haematoma was found extending from L3/4 to S2 vertebral levels. Only brain surgery was performed for all cases by the neurosurgeons. Paraparesis and severe leg pain, which were derived from spinal lesions, showed recovery approximately 2 weeks after onset and spinal subdural haematoma was completely resolved on MRI obtained 2 or 5 months after onset, respectively. There is a possibility that the incidence of spinal subdural haematoma concurrent with cranial subdural haematoma could be underestimated because the doctor had not obtained CT or MRI of the brain. Doctors should aware of such a condition and check patients with spinal subdural haematoma for neurological signs derived from brain lesions. Spontaneous resolution of spinal subdural haematoma was observed; therefore, surgery for this condition should be indicated only for patients with moderate or severe paraparesis or paraparesis deteriorated.

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