Secondary (metastatic) tumors
They are the most frequent brain tumors in adults (50%). About 10-15% of tumors metastasize in the brain. They can originate from the lung (44%), breast (10%), kidney (7%), gastrointestinal tract (6%), and melanoma (3%). The primary tumor is not found at a rate of 30%. The average survival of patients is 26-32 weeks, […]