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Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. [ 2 ][ 7 ] These contrast with benign tumors, which do not spread. [ 7 ] Possible signs and symptoms include a lump, abnormal bleeding, prolonged cough, unexplained weight loss, and a change in bowel movements. [ 1 ]
Cauterization. Cauterization (or cauterisation, or cautery) is a medical practice or technique of burning a part of a body to remove or close off a part of it. It destroys some tissue in an attempt to mitigate bleeding and damage, remove an undesired growth, or minimize other potential medical harm, such as infections when antibiotics are ...
Leukemia (also spelled leukaemia; pronounced / luːˈkiːmiːə / [ 1 ]loo-KEE-mee-ə) is a group of blood cancers that usually begin in the bone marrow and produce high numbers of abnormal blood cells. [ 9 ] These blood cells are not fully developed and are called blasts or leukemia cells. [ 2 ]
Pneumonia is an inflammatory condition of the lung primarily affecting the small air sacs known as alveoli. [ 3 ][ 14 ] Symptoms typically include some combination of productive or dry cough, chest pain, fever, and difficulty breathing. [ 15 ] The severity of the condition is variable. [ 15 ]
However, liver and stomach cancer are primarily due to infectious causes. Liver cancer is largely caused by infectious hepatitis B virus (HBV) plus hepatitis C virus (HBC) and stomach cancer is largely caused by Helicobacter pylori bacteria. World-wide, the estimated number of people chronically infected with HBV and/or HCV is ~325 million. [8]
Causes. Radiation, environmental factor, certain infections. A neoplasm (/ ˈniːoʊplæzəm, ˈniːə -/) [1][2] is a type of abnormal and excessive growth of tissue. The process that occurs to form or produce a neoplasm is called neoplasia.
Cancer is caused by genetic changes leading to uncontrolled cell growth and tumor formation. The basic cause of sporadic (non-familial) cancers is DNA damage and genomic instability. [1][2] A minority of cancers are due to inherited genetic mutations. [3] Most cancers are related to environmental, lifestyle, or behavioral exposures. [4]
Sepsis is a potentially life-threatening condition that arises when the body's response to infection causes injury to its own tissues and organs. [4][7] This initial stage of sepsis is followed by suppression of the immune system. [8] Common signs and symptoms include fever, increased heart rate, increased breathing rate, and confusion. [1]