Neoplasm

Neoplasm (from ancient Greek νεο- neo-, “new” + πλάσμα plasma, “formation”, “creation”) is an abnormal mass of tissue as a result of neoplasia. Neoplasia is the abnormal growth or division of cells. Prior to neoplasia, cells often undergo an abnormal pattern of growth, such as metaplasia or dysplasia. However, metaplasia or dysplasia do not always progress to neoplasia. The growth of neoplastic cells exceeds, and is not coordinated with, that of the normal tissues around it.