PATHOLOGY

Detailed explanation-1: -Cancer is an uncontrolled growth of cells leading to phenotypic expression in many forms, from mild to life-threatening. Cancer can develop in many ways, either from DNA damage, a mutation in the DNA or any product of that DNA, or by loss of function of the regulatory and repressor systems in the cycle.[9]

Detailed explanation-2: -Cancer is a disease caused when cells divide uncontrollably and spread into surrounding tissues. Cancer is caused by changes to DNA. Most cancer-causing DNA changes occur in sections of DNA called genes. These changes are also called genetic changes.

Detailed explanation-3: -Uncontrolled cell division occurs when these mechanisms fail and the cell continues to divide beyond what is actually needed by the organism. Proteins called tumor suppressors are designed to stop the cell when division is complete. If these fail, the cell can keep dividing.

Detailed explanation-4: -General Definition of Cancer The American Cancer Society (ACS) defines cancer as a group of diseases characterized by uncontrolled growth and spread of abnormal cells. If the spread is not controlled, it can result in death. A cancer cell is a cell that grows out of control.

Detailed explanation-5: -A tumor is any abnormal proliferation of cells, which may be either benign or malignant.