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Cancer screening is the effort to detect cancer early, during its pre-clinical phase—the time period that begins with an abnormal cell and ends when the patient notices symptoms from the cancer. It has long been known that some people have cancers with short pre-clinical phases (fast-growing, aggressive cancers), while others have cancers ...
Ductal carcinoma in situ, a condition sometimes called non-invasive or stage-zero breast cancer, is a very early finding of disease in the cells that line the milk ducts of the breast.
Breast cancer, prostate cancer, and colorectal cancer are examples of cancer types that are prone to overdiagnosis. [10] The consequences of overdiagnosis and overtreatment resulting from cancer screening can lead to a decline in quality of life, due to the adverse effects of unnecessary medication and hospitalization. [10] [12] [13]
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Some types of cancer are named for the size and shape of the cells under a microscope, such as giant cell carcinoma, spindle cell carcinoma and small-cell carcinoma. An invasive ductal carcinoma of the breast (pale area at the center) surrounded by spikes of whitish scar tissue and yellow fatty tissue
Cancer cells are cells that divide continually, forming solid tumors or flooding the blood or lymph with abnormal cells. [1] Cell division is a normal process used by the body for growth and repair. A parent cell divides to form two daughter cells, and these daughter cells are used to build new tissue or to replace cells that have died because ...
The hypothesis was postulated by the Nobel laureate Otto Heinrich Warburg in 1924. [3] He hypothesized that cancer, malignant growth, and tumor growth are caused by the fact that tumor cells mainly generate energy (as e.g., adenosine triphosphate / ATP) by non-oxidative breakdown of glucose (a process called glycolysis).
Carcinocythemia, also known as carcinoma cell leukemia, [2] is a condition in which cells from malignant tumours of non-hematopoietic origin are visible on the peripheral blood smear. [ 3 ] [ 4 ] It is an extremely rare condition, [ 5 ] with 33 cases identified in the literature from 1960 to 2018. [ 4 ]