Common Types of Cancer
There are more than two hundred various types of known cancers which affect humans. Most common cancers from among them are; Skin cancer, Lung cancer, Breast cancer, Prostate cancer, Colorectal cancer, Kidney cancer, Bladder cancer and Thyroid cancer. A brief information about them are summarized here under.
Skin cancer is the most common kind of cancer in humans. A change in the skin’s appearance, such as a new growth or a sore which does not heal is the most common warning symptom of skin cancer. Skin cancer is also called as skin neoplasia and they develop usually on the skin which is exposed to the sun’s rays and this includes the back of the arms and hands, nose, lips, ears, upper trunk, face, lower legs, and also the bald scalp.
Lung cancer, like all the other kinds of cancers, is the outcome of a deformity found in the body’s basic unit of life, the living cell. Smoking is the main risk factor for developing lung cancer. In the start of lung cancer, there may not be any symptoms found at all but, as slowly as the cancer develops, it brings about certain changes in people that they must be cautioned about. The changes are a persistent cough which only gets worse with the passage of time, a continuous chest pain, coughing up blood, shortness while breathing, wheezing, and a hoarse voice and so on.
Breast cancer is a kind of malignant tumor which occurs from the breast cells. Even though, breast cancer is mainly found in women, it can occur in men too. There are many kinds of breast cancer which varies depending on its ability to spread among other tissues of the body. The causes of breast cancer are still not completely known even though its various risk factors are already recognized.
The prostate gland is situated at the base of the urinary bladder. It is a malignant tumor which consists of prostate gland cells or cells from the prostate gland.
Colorectal cancer is a malignant tumor which develops from the internal walls of the large intestine. There are many risk factors for the cancer of the rectum and the colon and they comprise the long-standing ulcerative colitis, colon polyps and hereditary or having a genetic family history.
Kidney cancer is a malignant tumor of the kidney. The kidney is mainly responsible for removing all the metabolic wastes from the human body. The kidney cancer is treated by various medical procedures such as surgery, radiation therapy, biological therapy, embolization, biological and hormone therapy or chemotherapy.
The urinary bladder is an empty organ which is found in the pelvis region of the body. The main function of the pelvis is to store all the urine which drains into it from the kidney through the ureters which are tube-like structures. The ureters from both kidneys open right into the urinary bladder and the bladder becomes a low-pressure reservoir that slowly expands as it is filled with urine inside it. Bladder cancer is an unrestrained abnormal growth and an increase in cells in the urinary bladder that have become independent from the normal functioning of the body. Bladder cancer is capable to spread to some other parts of the body which include the bones, the lungs and also the liver.
Thyroid cancer is a cancer of the gland which is found in the front part of the neck and it produces the thyroid hormone. This hormone is vital for the regular functioning of the metabolism in the human body. A lump or nodule which is found in the neck is the most common symptom of thyroid cancer. Women are more affected than men by thyroid cancer and it usually happens in persons between 25 and 65 years of age.
© 2013 Dilip Chandra