space, hemorrhage, haemorrhage, block, injection, spaces, blood, bleeding, hemorrhages, fluid, anesthesia, cavity, clot, screw, tissue, bolt, cisterns, administration, injections, hematoma, analgesia, spread, catheter, shunt, puncture, cyst, blocks, effusion, haemorrhages, cysts, bleed, seeding, drain, fig, anaesthesia, placement, blockade, dissemination, cistern, csf, obstruction, pathways, sac, drainage, septum, morphine, bolts, clots, neurolysis, extension, catheters, infusion, exudate, bupivacaine, metastases, trabeculae, vasospasm, compartment, adhesions, tumor, perfusion, arteries, alcohol, hemor, lidocaine, blockage, enhancement, veins, haematoma, cavities, irrigation, pathway, villi, cisternae, cysticercosis, metastasis, hematomas, monitoring, tap, fibrosis, hemorrage

spinal, spontaneous, high, lumbar, acute, primary, combined, aneurysmal, inadvertent, cranial, interhemispheric, gross, extensive, low, term, experimental, massive, traumatic, fatal, intracranial, accidental, unintentional, intrathecal, subdural, hypobaric, cerebral, diffuse, intraparenchymal, possible, severe