Massachusetts Senator Edward Kennedy has been released from the hospital. He is heading to his Cape Cod home after being diagnosed with a cancerous brain tumor.

The 76-year-old Kennedy waved and gave a thumbs up to a crowd of well-wishers as he was leaving Massachusetts General Hospital in Boston.

His doctors say he "has recovered remarkably quickly" from a brain biopsy conducted Monday. The doctors are waiting on further test results before they work out a treatment plan.

Experts say the type of malignant tumor that Kennedy has is almost always fatal.