Malignant tumors are cancerous because they contain abnormal cells that are capable of invading nearby tissue. These abnormal cells can also spread to other parts of the body, leading to various forms of cancer.
What Causes Malignant Tumors?
Malignant tumors are caused by changes in the DNA of cells. These changes can be caused by environmental factors, such as radiation or chemicals, or by genetic mutations that occur naturally. The changes in the DNA cause the cells to grow and multiply uncontrollably, forming a mass of tissue known as a tumor.
What Are the Symptoms of Malignant Tumors?
The symptoms of malignant tumors vary depending on the type of cancer, but some common signs include:
- Unusual lumps or masses
- Unexplained weight loss
- Change in bowel habits
- Persistent fatigue
- Unexplained fever
- Difficulty breathing
How Are Malignant Tumors Diagnosed?
Malignant tumors can be diagnosed through a variety of tests, such as imaging tests, biopsies, blood tests, and genetic tests. Imaging tests, such as an X-ray or MRI, can help to identify any suspicious masses that may be cancerous. A biopsy, which involves taking a sample of the tumor and examining it under a microscope, can help to confirm a diagnosis. Blood tests may be used to measure the levels of certain proteins or substances in the body that can indicate the presence of cancer. Genetic tests can help to detect mutations in the cells that can cause cancer.
What Are the Treatments for Malignant Tumors?
Treatment for malignant tumors depends on the type of cancer, as well as the stage. Common treatments include surgery, chemotherapy, radiation, and targeted therapies. Surgery is often used to remove tumors and is usually the first line of treatment. Chemotherapy and radiation therapy can be used to kill cancer cells and shrink tumors. Targeted therapies use drugs to target specific molecules in the cancer cells that help them to grow.