Breast cancer occurs almost entirely in women, but men can get breast cancer, too. Cells in nearly any part of the body can become cancer and can spread to other areas. To learn more about cancer and how all cancers start and spread, see Cancer Basics. Where breast cancer starts. Breast cancers can start from different parts of the breast.
The lymphatic system is similar to the blood circulation. The lymph vessels branch through all parts of the body like the arteries and veins that carry blood. But the lymphatic system tubes are much finer and carry a colourless liquid called lymph. The lymph contains a high number of a type of white blood cells called lymphocytes. These cells fight infection and destroy damaged or abnormal cells.
Although cervical cancers start from cells with pre-cancerous changes (pre-cancers), only some of the women with pre-cancers of the cervix will develop cancer. It usually takes several years for cervical pre-cancer to change to cervical cancer, but it also can happen in less than a year.
The main types of cancer. Our bodies are made up of billions of cells. The cells are so small that we can only see them under a microscope. Cells group together to make up the tissues and organs of our bodies. They are very similar but vary in some ways b
The type of cancer is generally based on the part of your body and the type of cell where the cancer first developed. The most common places for cancer to develop are the skin, lungs, breasts, prostate, colon and rectum. There are three main types of cell where cancer develops: Epithelial cells.
Pilocytic Astrocytoma is a kind of non-malignant tumor often found in the brain. It arises from the astrocytes, which are brain cells in star-like forms. Astrocytes are the unit cells that safeguard the important nerve cells located inside the brain and the spinal cord.
It is grade IV. Grade I or II astrocytoma: In children, this low-grade tumor occurs anywhere in the brain. The most common astrocytoma among children is juvenile pilocytic astrocytoma. It's grade I. Ependymoma: The tumor arises from cells that line the ventricles or the central canal of the spinal cord. It's most commonly found in children and young adults. It can be grade I, II, or III.
Grade III astrocytoma: It's sometimes called a high-grade or an anaplastic astrocytoma. Grade IV astrocytoma: It may be called a glioblastoma (GBM) or malignant astrocytic glioma. Oligodendroglioma: The tumor arises from cells that make the fatty substance that covers and protects nerves. It usually occurs in the cerebrum. It's most common in middle-aged adults. It can be grade II or III.
Melanoma skin cancers. Melanoma is a cancer that begins in the melanocytes. Other names for this cancer include malignant melanoma and cutaneous melanoma. Most melanoma cells still make melanin, so melanoma tumors are usually brown or black. But some melanomas do not make melanin and can appear pink, tan, or even white.