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Lung cancer, also known as lung carcinoma, is a malignant lung tumor characterized by uncontrolled cell growth in tissues of the lung. This growth can spread beyond the lung by the process of metastasis into nearby tissue or other parts of the body. Most cancers that start in the lung, known as primary lung cancers, are carcinomas. The two main types are small-cell lung carcinoma (SCLC) and non-small-cell lung carcinoma (NSCLC). The most common symptoms are coughing, weight loss, shortness of breath, and chest pains.
In medicine, Breslow's depth was used as a prognostic factor in melanoma of the skin. It is a description of how deeply tumor cells have invaded. Currently, the standard Breslow's depth has been replaced by the AJCC depth, in the AJCC staging system of melanoma. Originally, Breslow's depth was divided into 5 stages.
Small-cell carcinoma is a type of highly malignant cancer that most commonly arises within the lung, although it can occasionally arise in other body sites, such as the cervix, prostate, and gastrointestinal tract. Compared to non-small cell carcinoma, small cell carcinoma has a shorter doubling time, higher growth fraction, and earlier development of metastases.
Adrenocortical carcinoma (ACC) is an aggressive cancer originating in the cortex of the adrenal gland.
A seminoma is a germ cell tumor of the testicle or, more rarely, the mediastinum or other extra-gonadal locations. It is a malignant neoplasm and is one of the most treatable and curable cancers, with a survival rate above 95% if discovered in early stages.
Brachyury is a protein that, in humans, is encoded by the TBXT gene. Brachyury functions as a transcription factor within the T-box family of genes. Brachyury homologs have been found in all bilaterian animals that have been screened, as well as the freshwater cnidarian Hydra.
Acute myeloid leukemia (AML) is a cancer of the myeloid line of blood cells, characterized by the rapid growth of abnormal cells that build up in the bone marrow and blood and interfere with normal blood cell production. Symptoms may include feeling tired, shortness of breath, easy bruising and bleeding, and increased risk of infection. Occasionally, spread may occur to the brain, skin, or gums. As an acute leukemia, AML progresses rapidly and is typically fatal within weeks or months if left untreated.
Non-small-cell lung carcinoma (NSCLC) is any type of epithelial lung cancer other than small-cell lung carcinoma (SCLC). NSCLC accounts for about 85% of all lung cancers. As a class, NSCLCs are relatively insensitive to chemotherapy, compared to small-cell carcinoma. When possible, they are primarily treated by surgical resection with curative intent, although chemotherapy has been used increasingly both preoperatively and postoperatively.
DLCO or TLCO is the extent to which oxygen passes from the air sacs of the lungs into the blood. Commonly, it refers to the test used to determine this parameter. It was introduced in 1909.
Cediranib is a potent inhibitor of vascular endothelial growth factor (VEGF) receptor tyrosine kinases.
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CCAAT/enhancer-binding protein alpha is a protein encoded by the CEBPA gene in humans. CCAAT/enhancer-binding protein alpha is a transcription factor involved in the differentiation of certain blood cells. For details on the CCAAT structural motif in gene enhancers and on CCAAT/Enhancer Binding Proteins see the specific page.
Tumor-associated glycoprotein 72 (TAG-72) is a glycoprotein found on the surface of many cancer cells, including ovary, breast, colon, lung, and pancreatic cancers. It is a mucin-like molecule with a molar mass of over 1000 kDa.
Human papillomavirus-positive oropharyngeal cancer, is a cancer of the throat caused by the human papillomavirus type 16 virus (HPV16). In the past, cancer of the oropharynx (throat) was associated with the use of alcohol or tobacco or both, but the majority of cases are now associated with the HPV virus, acquired by having oral contact with the genitals of a person who has a genital HPV infection. Risk factors include having a large number of sexual partners, a history of oral-genital sex or anal–oral sex, having a female partner with a history of either an abnormal Pap smear or cervical dysplasia, having chronic periodontitis, and, among men, younger age at first intercourse and a history of genital warts. HPV-positive OPC is considered a separate disease from HPV-negative oropharyngeal cancer.
Combined small cell lung carcinoma is a form of multiphasic lung cancer that is diagnosed by a pathologist when a malignant tumor arising from transformed cells originating in lung tissue contains a component of small cell lung carcinoma (SCLC) admixed with one components of non-small cell lung carcinoma (NSCLC).
Treatment of lung cancer refers to the use of medical therapies, such as surgery, radiation, chemotherapy, immunotherapy, percutaneous ablation, and palliative care, alone or in combination, in an attempt to cure or lessen the adverse impact of malignant neoplasms originating in lung tissue.
A cancer biomarker refers to a substance or process that is indicative of the presence of cancer in the body. A biomarker may be a molecule secreted by a tumor or a specific response of the body to the presence of cancer. Genetic, epigenetic, proteomic, glycomic, and imaging biomarkers can be used for cancer diagnosis, prognosis, and epidemiology. Ideally, such biomarkers can be assayed in non-invasively collected biofluids like blood or serum.
VeriStrat® is a test developed to evaluate patient prognosis and, additionally, predict benefit from cancer treatment by EGFR inhibitors. It is a serum/plasma proteomic test developed using matrix-assisted laser desorption/ionization (MALDI) mass spectrometry. VeriStrat was developed by Biodesix, Inc., a molecular diagnostics company based in Boulder, CO, USA.
Thymidine kinase is an enzyme, a phosphotransferase : 2'-deoxythymidine kinase, ATP-thymidine 5'-phosphotransferase, EC 2.7.1.21 that catalyzes the reaction:
Limited-stage small cell lung carcinoma (LS-SCLC) is a type of small cell lung cancer (SCLC) that is confined to an area which is small enough to be encompassed within a radiation portal. This generally includes cancer to one side of the lung and those might have reached the lymph nodes on the same side of the lung. 33% patients with small cell lung cancer are diagnosed with limited-stage small cell lung carcinoma when it is first found. Common symptoms include but are not limited to persistent cough, chest pain, rust-coloured sputum, shortness of breath, fatigue, weight loss, wheezing, hoarseness and recurrent respiratory tract infections such as pneumonia and bronchitis. Nervous system problems, Cushing syndrome and SIADH can also be associated with small cell lung cancer. Unlike extensive-stage small cell lung cancer, limited-stage small cell lung carcinoma is potentially curable. Standard treatments consist of surgery, platinum-based combination chemotherapy, thoracic irradiation, and prophylactic cranial irradiation. Patient five year survival rate has significantly increased from 1% with surgery to 26% after the application of combination chemotherapy.
References
- ↑ Cerny, T; Blair V; Anderson H; et al. (1987). "Pretreatment prognostic factors and scoring system in 407 small-cell lung cancer patients". International Journal of Cancer. 39 (2): 146–149. doi:10.1002/ijc.2910390204. PMID 3026969. S2CID 24194711.
- ↑ Kawahara, Masaaki; Masahiro Fukuoka; Nagahiro Saijo; et al. (1996). "Prognostic factors and prognostic staging system for small cell lung cancer". Japanese Journal of Clinical Oncology. Oxford University Press. 27 (3): 158–165. doi: 10.1093/jjco/27.3.158 . ISSN 0368-2811. PMID 9255270.
- ↑ Maestu, I; Pastor M; Gómez-Codina J; et al. (Jun 1997). "Pretreatment prognostic factors for survival in small-cell lung cancer: a new prognostic index and validation of three known prognostic indices on 341 patients". Annals of Oncology. 8 (6): 547–553. doi: 10.1023/A:1008212826956 . PMID 9261523.