In this learning unit, you will learn the definition of the terms used to describe illnesses. There are, of course, literally hundreds of names that could be listed in this unit. Those names listed are for illnesses that seem to occur with some frequency in persons who have developed cancer.

Information about present and very recent illnesses should be contained in the medical history section of the medical record — in particular, the section on present illness. The physical examination (PE) section may contain additional information.