Explanation:
A carcinoma is a type of cancer that develops from epithelial cells, specifically, a carcinoma is a cancer that begins in a tissue that lines the inner or outer surfaces of the body, and that arises from cells that originate in the endoderm , mesoderm and ectoderm, which are the germ layers during embryogenesis. Carcinomas occur when a cell's DNA is damaged or altered and the cell begins to grow uncontrollably and becomes malignant. It is derived from the Greek, καρκίνωμα, karkinoma, which means pain, ulcer or cancer (derived from karkinos meaning crab).
The two main groups of carcinomas are squamous cell carcinomas and adenocarcinomas.
Carcinomas are the most common type of cancer.
Common places of carcinomas are the skin, mouth, lung, breast, digestive tract and uterus.
