We report a very rare case of hydrocephalus associated with meningitis after the resection of cervical cord tumor. A 40-year-old male received resection of the cervical intradural neurinoma and reconstruction by one-door-open laminoplasty. After the surgery, numbness in the upper limbs disappeared, but MRI revealed fluid accumulation with fistula where the tumor resection was performed. Four weeks after surgery he had high fever, and swelling and redness at the posterior neck. Inflammation improved through the administration of antibiotics; however, Gd-enhanced MRI revealed granulation tissue around the cerebrospinal fluid fistula. On the eighth week after surgery, disorientation occurred and MRI revealed ventricle expansion, indicating hydrocephalus. Cerebrospinal fluid pressure was 230mmH2O, cell count was 64 dominant in monocyte, and glucose level was within the normal limits. We suspected hydrocephalus caused by meningitis and performed debridement and continuous drainage of the cerebrospinal fluid from lower back. Culture was negative, however, disorientation caused by hydrocephalus recurred at 13 weeks after shunt. After V-P shunt, disorientation disappeared and the patient could return to the previous job.
