NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,359 terms related to cancer and medicine.
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- Alzheimer disease
- listen (ALTS-hy-mer dih-ZEEZ)
- A brain disorder that usually starts in late middle age or old age and gets worse over time. Symptoms include loss of memory, confusion, difficulty thinking, and changes in language, behavior, and personality. Also called Alzheimer dementia.