A tumor or tumour is the name for a neoplasm Neoplasm is an abnormal mass of tissue as a result of neoplasia. Neoplasia is the abnormal proliferation of cells. The growth of the cells exceeds, and is uncoordinated with that of the normal tissues around it. The growth persists in the same excessive manner even after cessation of the stimuli. It usually causes a lump or tumor. Neoplasms may be or a solid lesion formed by an abnormal growth of cells (termed neoplastic Neoplasm is an abnormal mass of tissue as a result of neoplasia. Neoplasia is the abnormal proliferation of cells. The growth of the cells exceeds, and is uncoordinated with that of the normal tissues around it. The growth persists in the same excessive manner even after cessation of the stimuli. It usually causes a lump or tumor. Neoplasms may be) which looks like a swelling.[1] Tumor is not synonymous with cancer Cancer /ˈkænsər/ (medical term: malignant neoplasm) is a class of diseases in which a group of cells display uncontrolled growth (division beyond the normal limits), invasion (intrusion on and destruction of adjacent tissues), and sometimes metastasis (spread to other locations in the body via lymph or blood). These three malignant properties. A tumor can be benign A benign tumor is a tumor that lacks all three of the malignant properties of a cancer. Thus, by definition, a benign tumor does not grow in an unlimited, aggressive manner, does not invade surrounding tissues, and does not spread to non-adjacent tissues . Common examples of benign tumors include moles and uterine fibroids, pre-malignant A precancerous condition is a disease, syndrome, or finding that, if left untreated, may lead to cancer or malignant Malignancy is the tendency of a medical condition, especially tumors, to become progressively worse and to potentially result in death. It is characterized by the properties of anaplasia, invasiveness, and metastasis. Malignant is a corresponding adjectival medical term used to describe a severe and progressively worsening disease. The term is, whereas cancer is by definition malignant.
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Etymology
The term tumour/tumor is derived, from the Latin Latin or sometimes Roman is an Italic language originally spoken in Latium and Ancient Rome. Although often considered a dead language, in view of the fact that it has no native, fluent speakers, Latin continues to be taught in schools and has been, and currently is, used in the process of new word production in modern languages from many word for "swelling" tumor and has come to the English language via the Old French Old French was the Romance dialect continuum spoken in territories that span roughly the northern half of modern France and parts of modern Belgium and Switzerland from the 9th century to the 14th century. It is a direct descendent of Old Gallo-Romance. It was then known as the langue d'oïl to distinguish it from the langue d'oc (Occitan language, tumour (contemporary French: tumeur). In the Commonwealth the spelling "tumour" is commonly used, whereas in the U.S. it is usually spelled "tumor".
In its medical sense it originally meant an abnormal swelling of the flesh. Celsus Celsus was a 2nd century Greek philosopher and opponent of Christianity. He is known to us entirely because his literary work, The True Word (Account, Doctrine or Discourse) (Λόγος Ἀληθής), was largely reproduced in excerpts by Origen in his counter-polemic Contra Celsum. The work is the earliest anti-Christian polemic to reach us (ca 30 BC–38 AD) described four cardinal signs of acute inflammation Inflammation is part of the complex biological response of vascular tissues to harmful stimuli, such as pathogens, damaged cells, or irritants. Inflammation is a protective attempt by the organism to remove the injurious stimuli and to initiate the healing process. Inflammation is not a synonym for infection. Even in cases where inflammation is as tumor, dolor, calor and rubor For a person to flush is to become markedly red in the face and often other areas of the skin, from various physiological conditions. Flushing is generally distinguished, despite a close physiological relation between them, from blushing, which is milder, generally restricted to the face, cheeks or ears, and generally assumed to reflect.
But in contemporary English, tumor is synonymous with solid neoplasm Neoplasm is an abnormal mass of tissue as a result of neoplasia. Neoplasia is the abnormal proliferation of cells. The growth of the cells exceeds, and is uncoordinated with that of the normal tissues around it. The growth persists in the same excessive manner even after cessation of the stimuli. It usually causes a lump or tumor. Neoplasms may be,[2] all other forms of swelling being called swelling In medical parlance, swelling is the enlargement of organs caused by accumulation of excess fluid in tissues, called edema.[3] This usage is common also in medical literature, where the nouns tumefaction and tumescence Tumescence is the quality or state of being tumescent or swollen. Tumescence usually refers to the normal engorgement with blood of the erectile tissues, marking sexual excitation and possible readiness for sexual activity. The tumescent sexual organ in men is the penis and in women is the clitoris, derived from the adjective tumefied, are the current medical terms for non-neoplastic swelling. Swelling is most often caused by inflammation Inflammation is part of the complex biological response of vascular tissues to harmful stimuli, such as pathogens, damaged cells, or irritants. Inflammation is a protective attempt by the organism to remove the injurious stimuli and to initiate the healing process. Inflammation is not a synonym for infection. Even in cases where inflammation is caused by trauma, infection, etc.
Cause
A neoplasm is an abnormal proliferation of tissues, usually caused by genetic mutations Mutations are changes in the DNA sequence of a cell's genome and are caused by radiation, viruses, transposons and mutagenic chemicals, as well as errors that occur during meiosis or DNA replication. They can also be induced by the organism itself, by cellular processes such as hypermutation. Most neoplasms cause a tumor, with a few exceptions like leukemia Leukemia or leukaemia (Standard English; Greek leukos λευκός, "white"; aima αίμα, "blood") is a cancer of the blood or bone marrow characterized by an abnormal increase of blood cells, usually leukocytes (white blood cells). Leukemia is a broad term covering a spectrum of diseases. In turn, it is part of the even or carcinoma in situ Carcinoma in situ is an early form of carcinoma defined by the absence of invasion of surrounding tissues. In other words, the neoplastic cells proliferate in their normal habitat, hence the name "in situ" (Latin for "in its place"). For example, carcinoma in situ of the skin, also called Bowen's disease, is the accumulation of.
The nature of the tumor is determined by a pathologist Anatomical pathology or Anatomic pathology (U.S.) is a medical specialty that is concerned with the diagnosis of disease based on the gross, microscopic, chemical, immunologic and molecular examination of organs, tissues, and whole bodies (autopsy) after examination of the tumor tissues from a biopsy A biopsy is a medical test involving the removal of cells or tissues for examination. It is the medical removal of tissue from a living subject to determine the presence or extent of a disease. The tissue is generally examined under a microscope by a pathologist, and can also be analyzed chemically. When an entire lump or suspicious area is or a surgical excision Surgery is a medical specialty that uses operative manual and instrumental techniques on a patient to investigate and/or treat a pathological condition such as disease or injury, to help improve bodily function or appearance, and sometimes for religious reasons. An act of performing surgery may be called a surgical procedure, operation, or simply specimen and is then qualified as benign A benign tumor is a tumor that lacks all three of the malignant properties of a cancer. Thus, by definition, a benign tumor does not grow in an unlimited, aggressive manner, does not invade surrounding tissues, and does not spread to non-adjacent tissues . Common examples of benign tumors include moles and uterine fibroids, pre-malignant or malignant.
References
- ^ Tumor at Dorland's Medical Dictionary Dorland's is the brand name of a family of medical reference works in various media (including printed books, CD-ROMs, and online content). The flagship products are Dorland's Illustrated Medical Dictionary (currently in its 31st edition) and Dorland's Pocket Medical Dictionary (currently in its 27th edition). The principal dictionary was first
- ^ Tumor in MedlinePlus Medical Encyclopedia
- ^ Swelling in MedlinePlus Medical Encyclopedia
External links
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Categories: Anatomical pathology | Medical signs | Oncology |
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