Due to the close contacts of the lesion with the neurovascular structures, in the case of skull base chordoma and mobile spine, surgery is often incomplete. On the contrary, surgery of the sacral region (for which the block excision is often possible) brings a better therapeutic outcome.
- In this research study we are determining whether the positron emission tomography (PET) investigation performed with the investigational radioactive substance FMISO can show areas of tumor with lower oxygen levels. There is evidence that tumor with low oxygen levels are more resistant to
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