Secondary cerebral tumors or cerebral metastases
Secondary cerebral tumors, i.e. cerebral metastases (metastases in the brain), can be caused by various types of cancer (lung, breast, etc.). If one or more brain metastases are detected (less than 6): removal surgery is performed if the lesion is accessible and operable without risk to the patient. This surgery is intended for the treatment of the largest metastases, after which radiation therapy is performed in the excision area or surgical bed, radiotherapy reduces the risk of local recurrence.
Stereotactic radiotherapy (3 treatment sessions) or radiosurgery (one treatment session) can also be performed for one to three sessions with a control MRI after six to eight weeks to evaluate the treatment outcome.
Sometimes many metastases are scattered throughout the brain, thus radiotherapy, called "encephale in toto / complete" is suggested. It is carried out in ten sessions of 3 Gy, this helps to control the disease.