Cancer that originates on its own at a specific site in the body, rather than having spread there from another site. Prostate cancer is a primary cancer.
The first or original cancer.
Cancer that first develops in the breast. When Breast Cancer Recurs
Place where cancer starts; if cancer cells are found in another place in the body they are examined by a pathologist to determine if they are the same as the primary tumor, in which case it is called a metastasis; it is still breast cancer, but not in the breast; the usual places for breast cancer metastasis are bone, lung, liver, and brain.
refers to where the cancer first started. Sometimes a cancer is not diagnosed until a secondary cancer occurs. In prostate cancer some men do not know they have prostate cancer (the primary cancer) until it is found in the bone (the secondary cancer). Also see secondary cancer.
Where the cancer started. The type of cell that has become cancerous will be the primary cancer - for example, if a biopsy from the liver or lung contains cancerous breast cells, then the primary cancer is breast cancer.
First cancer, usually named after the site where it originates (for example, cancer that originates in the breast is always called breast cancer even if it spreads to other organs, such as bones or lungs).
The first location where cancer develops in the body.
the original site where cancer occurs.
The site where cancer begins. Primary cancer is usually named after the organ in which it originates (for example, cancer that originates in the breast is always breast cancer even if it metastasizes to other organs, such as bones or lungs).
A cancer in the organ it started in. A primary cancer of the pancreas is one that started in the pancreas as oppossed to a cancer that started somewhere else and only later spread to the pancreas.
Cancer in the part of the body where it began
A cancer found in the organ it started in. A primary cancer of the esophagus is one that started in the esophagus as opposed to a cancer that started somewhere else and only later spread to the esophagus.
Cancer that is located in the organ or tissue where the cancer began.