neoplasm or tumor, tissue composed of cells that grow in an abnormal way. Normal tissue is growth-limited, i.e., cell reproduction is equal to cell death. Feedback controls limit cell division after a certain number of cells have developed, allowing for tissue repair but not expansion. Tumor cells are less responsive to these restraints and can proliferate to the point where they disrupt tissue architecture, distort the flow of nutrients, and otherwise do damage.
Tumors may be benign or malignant. Benign tumors remain localized as a discrete mass. They may differ appreciably from normal tissue in structure and excessive growth of cells, but are rarely fatal. However, even benign tumors may grow large enough to interfere with normal function. Some benign uterine tumors, which can weigh as much as 50 lb (22.7 kg), displace adjacent organs, causing digestive and reproductive disorders. Benign tumors are usually treated by complete surgical removal. Cells of malignant tumors, i.e., cancers, have characteristics that differ from normal cells in other ways beside cell proliferation. For example, they may be deficient in some specialized functions of the tissues where they originate. Malignant cells are invasive, i.e., they infiltrate surrounding normal tissue; later, malignant cells metastasize, i.e., spread via blood and the lymph system to other sites.
Both benign and malignant tumors are classified according to the type of tissue in which they are found. For example, fibromas are neoplasms of fibrous connective tissue, and melanomas are abnormal growths of pigment (melanin) cells. Malignant tumors originating from epithelial tissue, e.g., in skin, bronchi, and stomach, are termed carcinomas. Malignancies of epithelial glandular tissue such as are found in the breast, prostate, and colon, are known as adenocarcinomas. Malignant growths of connective tissue, e.g., muscle, cartilage, lymph tissue, and bone, are called sarcomas. Lymphomas and leukemias are malignancies arising among the white blood cells. A system has been devised to classify malignant tissue according to the degree of malignancy, from grade 1, barely malignant, to grade 4, highly malignant. In practice it is not always possible to determine the degree of malignancy, and it may be difficult even to determine whether particular tumor tissue is benign or malignant.
2006-07-29 20:03:45
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answer #1
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answered by vickydevil000 3
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Neoplastic Disorder
2016-10-01 11:59:49
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answer #2
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answered by ? 4
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I'm not sure who said that, or in what context, but I will try to answer anyway. "Neoplastic disorder" is another term for cancer. So "follow-up neoplastic disorder" means that the person needs further medical care related to the cancer. If the cancer has just been diagnosed, then follow-up might include testing and/or treatment. Even people who have been successfully treated for cancer still need to be seen by doctors periodically to make sure that everything is okay. Hope that helps.
2016-04-03 22:27:39
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answer #3
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answered by Anonymous
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2014-09-18 15:32:13
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answer #4
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answered by Anonymous
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Benign esophageal tumors are non-malignant neoplasms arising from the mucosal or muscular layers of the esophagus. Benign tumors of the esophagus are rare. Leiomyoma, the most common, has been described in 5% of autopsy specimens. Benign tumors are classified as mucosal or intramural. Mucosal tumors tend to produce a filling defect in the lumen; they include fibrovascular polyps, granular cell tumors, papillomas and lipomas. Intramural lesions are more common than mucosal tumors. They produce an extrinsic mass projecting from the wall into the lumen. Such tumors include leiomyomas and cysts.
2006-07-29 20:01:25
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answer #5
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answered by frappe179 3
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2016-04-22 07:59:11
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answer #6
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answered by Anonymous
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Benign(non cancerous) or malignant(cancerous)tumor.
Neo=new
plasm=growth
2006-07-29 22:49:55
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answer #7
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answered by J.SWAMY I ఇ జ స్వామి 7
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Neoplastic disorder is usually difficulty swallowing. However, there are several things it is and I've pasted website links here for you to read all about it:
http://www.clevelandclinicmeded.com/diseasemanagement/gastro/esophagus/esophagus.htm
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=10492045&dopt=Abstract
http://72.14.203.104/search?q=cache:v8M6e9xaTcIJ:instructional1.calstatela.edu/nmcquee/Micro410/Neoplastic%2520disorders%2520of%2520the%2520bone%2520marrow.ppt+neoplastic+disorder&hl=en&gl=us&ct=clnk&cd=5
http://www.anatomicpathology.com/pt/re/aapath/abstract.00125480-200211000-00005.htm;jsessionid=GMdTrH6VnlnbTspFZFphBhK6lQgppBPrYJWrhZ2ftLtnnC9zZCGl!-1082563917!-949856145!8091!-1
2006-07-29 20:21:28
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answer #8
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answered by Anonymous
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It means that it has turn cancerous
2006-07-30 01:35:31
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answer #9
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answered by ancalagon2003 3
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generally refers to a cancer.
2006-07-29 19:58:54
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answer #10
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answered by Daniel H 5
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