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.
In a nutshell, a nevus is a birthmark. But, there is much more to learn than that. There are several types of nevi: epidermal, melanocytic and connective tissue nevi. Nevus Outreach deals with large and giant congenital melanocytic nevi. Large means, well, big! Congenital means it is present at birth.