19 had persistent cerebro-spinal fluid rhinorrhoea following cranial injury , basal skull surgery or of unknown origin , 3 had recalcitrant benign intra-cranial hypertension , 14 had a persistent bulging craniotomy site after operations for intra-cranial tumours or head trauma , 4 had syringomyelia and 1 had a postoperative cervical meningocele .
C0037303
skull
C0010280
craniotomy