There are two basic kinds of medical test results: 1  Tests that give yes or no answers (usually used for diagnostic purposes) 2  Tests that give relative results, as in measuring something to be higher or lower, bigger or smaller than before, or inside or outside a normal range.
[edit on Wikidata] A melanocytic nevus (also known as nevocytic nevus) is a type of lesion that contains nevus cells (a type of melanocyte). Some sources equate the term mole with melanocytic nevus. Other sources reserve the term mole for other purposes.
The development of malignant melanoma from a preexisting melanocytic nevus is a well-described occurrence. A clinical history of a preexisting nevus at the site of a melanoma is reported in 19-85% of cases, and the contiguity of nevus cells with melanoma is observed in 4-72% of cases.