This is a special type of cancer which infects the skin cells and the tissue lining the organs like liver or kidney. These carcinomas are able to invade other organs but not always. These may be of different types like basal cell carcinoma, squamous cell carcinoma or renal cell carcinoma.
It may be caused by vast variety of the factors like
Environmental factors like
Certain diets like canned and junk foods
Certain chemicals like morphine
Smoking or alcoholism
Exposure to sunlight or ultraviolet light
Different types of carcinomas are manifested by different signs. But some general symptoms are associated with carcinoma are following