This is an automatically translated article.
The article is professionally consulted by Master, Doctor Tran Ngoc Hai - Internal Oncologist - Internal Oncology Department - Vinmec Times City International Hospital. The doctor has extensive experience in the examination, diagnosis and treatment of cancers.During metastasis, cancer cells break away from where they first formed (primary cancer), travel through the blood or lymphatic system, and form new tumors (metastatic tumors) in different parts of the body. other part of the body. This article will look at some of the signs of metastatic cancer.
1. What is metastatic cancer?
Metastasis is a word used to describe the spread of cancer. Unlike normal cells, cancer cells have the ability to grow outside of where they originate. When this happens, it is called metastatic cancer.Nearly all cancers have the ability to metastasize, but the nature of metastasis depends on many different factors. Metastasis can occur in three ways:
The tumor can grow directly into the tissues surrounding the tumor. Cells can travel through the bloodstream to distant locations. The cells can travel through the lymphatic system to nearby or distant lymph nodes. Occasionally, cancer metastases will be found without the primary cancer.
Trắc nghiệm: Thử hiểu biết của bạn về bệnh ung thư
Ung thư là nguyên nhân gây tử vong hàng thứ 2 trên thế giới. Thử sức cùng bài trắc nghiệm sau đây sẽ giúp bạn có thêm kiến thức về yếu tố nguy cơ cũng như cách phòng ngừa bệnh ung thư.
Bài dịch từ: webmd.com
2. Signs of metastatic cancer
Đau xương có thể là một trong những dấu hiệu của ung thư di căn
If a tumor has spread to the brain, symptoms may include headache, dizziness and problems with vision, voice, nausea, difficulty walking or confusion.
Some common signs of metastatic cancer include:
Pain and fractures when the cancer has spread to the bones. Headache, convulsions, or dizziness when the cancer has spread to the brain. Shortness of breath, when the cancer has spread to the lungs. Jaundice or swelling in the abdomen, when cancer has spread to the liver. If the patient has metastatic bone cancer, there may be no pain. Occasionally, the first sign of bone metastasis is a broken bone following a minor or no injury. Severe back pain accompanied by numbness in the legs or difficulty with gastrointestinal or urinary control, must be evaluated by a doctor immediately.
Symptoms of metastatic lung cancer are often vague and may be related to other problems unrelated to cancer. These may include coughing, coughing up blood, chest pain, or difficulty breathing.
Liver metastases can cause pain, weight loss, nausea, loss of appetite, abdominal discharge (ascites) or jaundice (yellowing of the skin and whites of the eyes), dark urine, and pale stools.
Metastasis is mainly treated based on the original location of the cancer. For example, if a person has breast cancer and the cancer has spread to the liver, it will still be treated with the same drugs used for breast cancer - because the cancer cells themselves have not changed, the cells are only live in a new location.
Currently, researchers are studying new ways to kill or stop the growth of primary and metastatic cancer cells. This research includes finding ways to help your immune system fight cancer. Researchers are also trying to find ways to disrupt the steps in the process by which cancer cells metastasize.
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References: cancer.gov; clevelandclinic.org
