[Post-traumatic syringomyelia (author's transl)].

We have examined a clinical case concerning a patient who, five years after a spinal cord injury, showed a series of symptoms due to the presence of a intramedullary cyst according to neurologists' general opinion. They think this cavitation is a development of acute myelomalacic cores or of a central haemorrhage. The extension of the cavities is regarded as a result of trasmission of venous pressure, brought about by coughing, straining and sneezing, to the spinal cord and of tethering of the cord at the side of trauma by dense arachnoidal adhesions, hence its adaptability to the extremes of movements is hampered.