CANCER

Cancer, known medically as a malignant neoplasm, is a broad group of various diseases, all involving unregulated cell growth. In cancer, cells divide and grow uncontrollably, forming malignant tumors, and invade nearby parts of the body.

TYPES OF TUMORS:

BENIGN:

Tumors that stay in one spot and demonstrate limited growth are generally considered to be benign.

MALIGNANT:

When a cancerous cell can perform metastasis using the blood or lymph systems and in the process makes new blood vessels to feed itself ,its called malignant.

CANCER-A GENETIC DISORDER:

At the molecular level, cancer is caused by mutation(s) in DNA, which result in aberrant cell proliferation.

The mutation(s) occur in two classes of cellular genes:

Proto-onco Gene:

Normally causes high cell division rates where it is needed, such as in the fetus or in a wound. The abnormal activation of such a gene mostly due to single base substitution causes cancer.

Tumor Suppressor Genes:

Regulates suppression of proliferation thus,contribute to cancer by the inactivating of loss of function mutation mostly due to deletion.

To read more about the treatment options ,patient care and research going on related to this deadly malady click on the following links:
CANCER CARE SYSTEM IN USA - what needs improvement?
HOPE SPRINGS ETERNAL...