[Pseudocyst of the neck after traumatic avulsion of spinal C6-T2 nerve roots--case report].

A case is presented of an avulsion injury of the left brachial plexus in a woman who--after surgical reconstruction of the plexus--developed a liquid fistula from a giant pseudocyst localized in this area. A prolonged persistence of the pseudocyst resulted in a severe pain syndrome and symptoms of vascular disorders in the upper limb. Since results of local treatment (punctures, pressure dressings) were unsatisfactory, the authors decided to close the liquid fistula by suturing the damaged dural sac by means of laminectomy. The necessity of particular caution when operating in the area of intervertebral foramina is emphasized. The authors also point out that in case of any of cerebrospinal fluid leakage, special attention should be paid to stopping the escape of CSF.