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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 cells are cells that divide continually, forming solid tumors or flooding the blood or lymph with abnormal cells. 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 of ...
Carcinoma is a malignancy that develops from epithelial cells. [1] Specifically, a carcinoma is a cancer that begins in a tissue that lines the inner or outer surfaces of the body, and that arises from cells originating in the endodermal, mesodermal [2] or ectodermal germ layer during embryogenesis. [3]
Malignancy. Malignancy (from Latin male 'badly', and -gnus 'born') is the tendency of a medical condition to become progressively worse; the term is most familiar as a characterization of cancer . A malignant tumor contrasts with a non-cancerous benign tumor in that a malignancy is not self-limited in its growth, is capable of invading into ...
Oncology. A sarcoma is a malignant tumor, a type of cancer that arises from cells of mesenchymal ( connective tissue) origin. [1] [2] Connective tissue is a broad term that includes bone, cartilage, fat, vascular, or other structural tissues, and sarcomas can arise in any of these types of tissues. [2] [3] As a result, there are many subtypes ...
Anatomical pathology ( Commonwealth) or anatomic pathology ( U.S.) is a medical specialty that is concerned with the diagnosis of disease based on the macroscopic, microscopic, biochemical, immunologic and molecular examination of organs and tissues. Over the 20th century, surgical pathology has evolved tremendously: from historical examination ...
Carcinogenesis, also called oncogenesis or tumorigenesis, is the formation of a cancer, whereby normal cells are transformed into cancer cells. The process is characterized by changes at the cellular, genetic, and epigenetic levels and abnormal cell division. Cell division is a physiological process that occurs in almost all tissues and under a ...
Lymphoma is a group of blood and lymph tumors that develop from lymphocytes (a type of white blood cell ). [7] The name typically refers to just the cancerous versions rather than all such tumours. [7] Signs and symptoms may include enlarged lymph nodes, fever, drenching sweats, unintended weight loss, itching, and constantly feeling tired.