Skin Care and Plastic Aesthetics

Neoplasm

A neoplasm is an abnormal mass of tissue, the growth of which exceeds and is uncoordinated with that of normal tissues and persists in the same excessive manner after cessation of the stimuli that evoke the change. In contrast to normal cells, the growth of neoplastic cells is:

Autonomous: The growth of neoplastic cells is independent of growth factors and regulatory mechanisms operating inside the normal tissues.

Excessive: This excess may be evident in the size of the outgrowths and the duration of the proliferation.

Disorganized: The structures formed by tumour cells differ from normal tissues and do not fit into the general organization scheme of the normal body.