| undifferentiated | <embryology, pathology> An immature, embryonic or primitive cell. It has a non-specific appearance with multiple non-specific activities and functions poorly. See: differentiate, dedifferentiate. (16 Dec 1997) |
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| undifferentiated abdominal malignancy | <radiology> Large soft-tissue masses, multiple linear or nodular calcific densities, can coalesce to form conglomerate masses (12 Dec 1998) |
| undifferentiated cell | A primitive cell that has not assumed the morphologic and functional characteristics it will later acquire. (05 Mar 2000) |
| undifferentiated cell adenoma | <tumour> An adenoma of the hypophysis composed of cells for which there is no overt evidence or hormone production, but which usually produces hypopituitarism and visual disturbances by compression of adjacent structures; approximately one third of these tumours have cells with abundant mitochondria (oncocytes) that are somewhat larger than the monocytic null cells. Synonym: undifferentiated cell adenoma. (05 Mar 2000) |
| undifferentiated sarcoma of liver | <radiology> Kiddies, age 4 - 15 yrs, M = F, complex hepatic mass, often hypovascular, most in right lobe, large ( more than 10 cm), ** Differential diagnosis: embryonal rhabdomyosarcoma (12 Dec 1998) |
| undifferentiated type fever | A term applied to illnesses resulting from infection by any one of the arboviruses pathogenic for man, in which the only constant manifestation is fever; rash, lymphadenopathy, or arthralgia (alone or in combination) may occur in some individuals but not in others; some arboviruses may induce infections in which undifferentiated type fever is the only manifestation, whereas other arboviruses may induce in some persons only undifferentiated fever, and in other persons similar fever followed by secondary manifestations, e.g., a haemorrhagic fever or encephalitis. (05 Mar 2000) |
| lymphoma, undifferentiated | A form of lymphoma in which relatively large stem cells with large nuclei, pale, scanty cytoplasm, and indistinct borders are predominant. The cells are undifferentiated, i.e., show no morphologic evidence of maturation toward lymphocytes or histiocytes. (12 Dec 1998) |
| American Cancer Society | <address, organisation> American Cancer Society, National Headquarters, 1599 Clifton Road, NE, Atlanta, GA 30329 USA. Tel: 00 1 404 320-3333 (05 Feb 1998) |
| bladder cancer | The most common warning sign of bladder cancer is blood in the urine. The diagnosis of bladder cancer is supported by findings in the medical history and examination, blood, urine, and X-ray tests, and confirmed with a biopsy (usually during a cystoscope exam). Treatment of bladder cancer depends on the growth, size, and location of the tumour. (12 Dec 1998) |
| bladder cancer risks | Smoking is a major risk factor. Cigarette smokers develop bladder cancer 2-3 times more often than do nonsmokers. Quitting smoking reduces the risk of bladder cancer, lung cancer, several other types of cancer, and a number of other diseases as well. Workers in some occupations are at higher risk of developing bladder cancer because of exposure to carcinogens (cancer-causing substances) in the workplace. These workers include people in the rubber, chemical, and leather industries, as well as hairstylists, machinists, metal workers, printers, painters, textile workers, and truck drivers. (12 Dec 1998) |
| bone cancer | <oncology> A general term to imply malignant tumour growth in bone. (27 Sep 1997) |
| bovine cancer eye | A malignant squamous cell carcinoma of cattle, especially the Hereford breed, that originates in the conjunctival mucous membranes or the surrounding skin; it occurs principally in range cattle having unpigmented skin around the eye and living in regions of intense sunlight. (05 Mar 2000) |
| BRCA1 breast cancer susceptibility gene | This mutated (changed) version of the BRCA1 gene makes a person susceptible to developing breast cancer. (12 Dec 1998) |
| breast cancer | <oncology> The uncontrolled growth of malignant breast tissue. Breast cancer is currently the most common cancer in women and the leading cause of cancer-related death in the 15-54 age group. Strong risk factors include a prior history for breast cancer or a positive family history for breast cancer. Early detection is possible through the use of monthly breast self-examination, annual clinical exams and mammography. WWW: cancerNET document for patients WWW: cancerNET document for clinicians (05 Jan 1998) |
| breast cancer susceptibility genes | Inherited factors that predispose to breast cancer. Put otherwise, these genes make one more susceptible to the disease and so increase the risk of developing breast cancer. Two of these genes, BRCA1 and BRCA2, have been identified (and prominently publicised). Several other genes (those for the Li-Fraumeni syndrome, Cowden disease, Muir-Torre syndrome, and ataxia-telangiectasia) are also known to predispose to breast cancer. However, since all of these known breast cancer susceptibility genes together do not account for more than a minor fraction (1/5th at most) of breast cancer that clusters in families, it is clear that more breast cancer genes remain to be discovered. (12 Dec 1998) |