NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,780 terms related to cancer and medicine.
Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.
- choroid plexus tumor
- listen (KOR-oyd PLEK-sus TOO-mer)
A rare tumor that forms in the choroid plexus (a network of blood vessels and cells in the fluid-filled spaces of the brain). These tumors are most common in children younger than 2 years. Choroid plexus tumors may be benign (not cancer) or malignant (cancer).