Introduction

Oncology (Cancer) - Introduction

Oncology

Oncology is a branch of medicine that deals with tumors or cancer. The word ‘onco’ means mass, bulk or tumor while logy means study.

Tumor is an abnormal mass of tissue that can be classified as:

  • Benign
  • Malignant

There are hundreds of different types of tumors. Their names usually reflect the kind of tissue they arise in, and may also tell you something about their shape or how they grow. Diagnosis depends on the type and location of the tumor. Tumor marker tests and imaging may be used. Treatment is also specific to the location and type of the tumor.

Cancer, also called malignancy, is an abnormal growth of cells. Each of the cells of the body has tightly regulated system that controls their growth, maturity, reproduction and even death. Cancer begins when cells in a part of the body start to grow out of control. There are many kinds of cancer, but they all start because of out-of-control growth of abnormal cells.

There are various types of cancer like Breast cancer, skin cancer, lung cancer, colon cancer, prostate cancer and lymphoma. The sign and symptoms vary depending on the type. Treatment for cancer includes chemotherapy, radiation and surgery.


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