562 / 1266
Primary CNS Germ Cell Tumors
Frequency:
2 - 5 % of primary CNS tumours
Incidence: 0.02 - 0.07/ 100,000
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)