Cancer

Cancer is a group of diseases characterized by uncontrolled growth of tissue cells in the body and the invasion by these cells into nearby tissue and migration to distant sites. Cells are the building blocks of living things.
Cancer grows out of normal cells in the body. Normal cells multiply when the body needs them, and die when the body doesn't need them. Cancer appears to occur when the growth of cells in the body is out of control and cells divide too quickly. It can also occur when cells forget how to die.
There are many different kinds of cancers. Cancer can develop in almost any organ or tissue, such as the lung, colon, breast, skin, bones, or nerve tissue.

Bronchiogenic

Bronchogenic carcinoma, (or frequently known as lung cancer) is the most common cause of cancer in men, and the 6th most frequent cancer in women worldwide. It is the leading cause of cancer mortality worldwide in both men and women and accounts for approximately 20% of all cancer deaths. Bronchogenic carcinoma, or lung cancer, is the most common cause of cancer deaths worldwide. There are quite a few different sub types of lung cancer which have minor differences in presentation and treatment, but in general they share a common group of symptoms. Often, the patient is asymptomatic or only has a few symptoms so the physician has to be vigilant with patient history to evaluate for lung cancer.