| GM | gastric mucosa; Geiger-Muller [counter]; general medicine; genetic manipulation; geometric mean; gia... |
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| GMC | general medical clinic; general medical council; giant migratory contraction; grivet monkey cell |
| GPC | gastric parietal cell; gel permeation chromatography; giant papillary conjunctivitis; glycophorin C;... |
| GPHN | giant pigmented hairy nevus |
| GPM | general preventive medicine; giant pigmented melanosome |
| squid giant axon | <physiology> Large axons, up to 1mm in diameter, that innervate the mantle of the squid. Because of their large size, many of the pioneering investigations of the mechanisms underlying resting and action potentials in excitable cells were done on these fibres. (10 Mar 1998) |
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| subependymal giant cell astrocytoma | <tumour> A rare astrocytoma, frequently located in the wall of the lateral ventricle, comprised of large glial cells with abundant eosinophilic cytoplasm and intermixed elongated astrocytes, associated with tuberous sclerosis. (05 Mar 2000) |
| interstitial giant cell pneumonia | A rare complication of measles, with the postmortem finding of multinucleated giant cells lining alveoli. Synonym: Hecht's pneumonia, interstitial giant cell pneumonia. (05 Mar 2000) |
| Touton giant cell | A xanthoma cell in which the multiple nuclei are grouped around a small island of nonfoamy cytoplasm. (05 Mar 2000) |
| Langhans giant cell | Multinucleate cells formed by fusion of epithelioid macrophages and associated with the central part of early tubercular lesions. Similar to foreign body giant cells, but with the nuclei peripherally located. (18 Nov 1997) |
| Langhans'-type giant cells | Multinucleated giant cell's seen in tuberculosis and other granulomas; the nuclei are arranged in an arciform manner at the periphery of the cell's. Synonym: Langhans'-type giant cells. Synonym: cytotrophoblastic cells. (05 Mar 2000) |
| foreign body giant cell | <pathology> Syncytium formed by the fusion of macrophages in response to an indigestible particle too large to be phagocytosed for example talc, silica or asbestos fibres). There may be as many as 100 nuclei randomly distributed: similar cells but with the nuclei more peripherally located (Langhans cells) are found at the centre of tuberculous lesions. (06 Mar 1998) |
| accessory breast | A milk-secreting gland located elsewhere than at the normal place on the chest and existing in addition to the two usual mammae. Synonym: mamma accessoria, accessory breast, supernumerary mamma. (05 Mar 2000) |
| bed of breast | Structures against which the posterior surface of the breast lies; includes mainly the pectoralis major muscle, but also some serratus anterior and external abdominal oblique muscle; extends from second to sixth rib, and from parasternal to anterior axillary lines. (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 | To meet, with the breast; to struggle with or oppose manfully; as, to breast the storm or waves. "The court breasted the popular current by sustaining the demurrer." (Wirt) To breast up a hedge, to cut the face of it on one side so as to lay bare the principal upright stems of the plants. Origin: Breasted; Breasted. 1. The fore part of the body, between the neck and the belly; the chest; as, the breast of a man or of a horse. 2. Either one of the protuberant glands, situated on the front of the chest or thorax in the female of man and of some other mammalia, in which milk is secreted for the nourishment of the young; a mammma; a teat. "My brother, that sucked the breasts of my mother." (Cant. Viii. 1) 3. Anything resembling the human breast, or bosom; the front or forward part of anything; as, a chimney breast; a plow breast; the breast of a hill. "Mountains on whose barren breast The laboring clouds do often rest." (Milton) 4. <chemical> The face of a coal working. The front of a furnace. 5. The seat of consciousness; the repository of thought and self-consciousness, or of secrets; the seat of the affections and passions; the heart. "He has a loyal breast." (Shak) 6. The power of singing; a musical voice; so called, probably, from the connection of the voice with the lungs, which lie within the breast. "By my troth, the fool has an excellent breast." (Shak) Breast drill, a portable drilling machine, provided with a breastplate, for forcing the drill against the work. Breast pang. See Angina pectoris, under Angina. To make a clean breast, to disclose the secrets which weigh upon one; to make full confession. Origin: OE. Brest, breost, As. Breost; akin to Icel. Brjst, Sw. Brost, Dan. Bryst, Goth. Brusts, OS. Briost, D. Borst, G. Brust. Source: Websters Dictionary (01 Mar 1998) |
| breast augmentation | <surgery> A surgical procedure, often involving the use of a prosthetic implant, to increase the size or alter the shape of the breast. (27 Sep 1997) |
| breast bone | The breastbone. The sternum articulates with the ribs 1 through 7 on either side of the chest. (27 Sep 1997) |
| 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) |