Definition

Cancer is the term for all malignant tumors growing rapidly, and tend to generalize (metastasis).

Called cancerous transformation of healthy cells composing a tissue, neoplastic (cancerous) cells of the same type.

All body tissues are susceptible to carcinogenesis; No organ is immune.

Overview

Carcinogenicity (also called carcinogenic or carcinogenic) regarding anything that can cause the development of cancer, or lesional process that can cause cancer.

Historical

Oncology or carcinology term used by Ducuing, is the scientific study of cancers and their treatments.

The term cancerophobia (from cancer and Greek phobos: fear, cancerophobia in English) is the agonizing fear, not always justified, of certain individuals to be affected by cancer.

The cancroid term (from cancer and Greek eidos: shape, in English concroid) is the term used in 1806 by Alibert to designate a tumor, meeting at the level of the skin, called a few years later keloid, and corresponding to a variety skin cancers (skin) with a slower evolution than other cancers.

This type of skin lesion is primarily the face, specifically lips.

Classification

Cancers are classified according to their histological type (histology is the study of tissue) in:

Carcinomas (also called epithelial cancers, or carcinomas). It is a malignant tumor that develops at the expense of epithelial tissues. Epithelial tissues are tissues covering and protecting the surface of some body organs located outside, such as skin and mucous membranes of the body orifices among others. The epithelial tissues are also glands. There are several types of epithelial tissues: the epidermis is. The term carcinoma is better than that of carcinoma. But usage has kept the name of carcinoma to describe certain diseases, particularly skin, such as basal cell or squamous cell carcinoma of. A distinction even within carcinoma: