individual masks have been applied for about one year at the radiotherapeutic hospital of erlangen in order to treat tumors situated in the head and neck region , the superior aperture of the thorax and the brain as well as tumors situated in the posterior cranial fossa showing a tendency to form metastases within the spine ( medulloblastoma and ependymoblastoma ) .
C0006104
brain
C0025149
medulloblastoma