Brain Tumours

Primary CNS Germ Cell Tumors Frequency: Incidence: 0.02 - 0.07/ 100,000

2 - 5 % of primary CNS tumours

0.6 per million per year in USA/Europe 2.7 per million per year in Japan

Age:

75% of patients are 10-20 years

Male : female ratio 2 : 1

Presenting symptoms

endocrine (e.g. DI) visual (e.g. Parinaud) neurological (e.g. raised ICP)