| squamous intraepithelial lesion | A general term for the abnormal growth of squamous cells on the surface of the cervix. The changes in the cells are described as low grade or high grade, depending on how much of the cervix is affected and how abnormal the cells are. Also called sil. (12 Dec 1998) |
|---|---|
| dark t2 lesion | <radiology> (short T2), acute haemorrhage (deoxyHb), haemosiderin, physiologic iron (basal ganglia, etc.), mucinous lesions (?) most abnormalities have long T1 and T2 (dark/bright). Compare: bright T1 lesion. (07 Mar 2000) |
| supranuclear lesion | Injury to cerebral descending (corticonuclear) fibres above the brainstem or spinal motor nerve nucleus. Synonym: upper motor neuron lesion. (05 Mar 2000) |
| Dreulofoy's lesion | An abnormally large submucosal artery located in the proximal stomach that may be the site of acute and recurrent episodes of massive haemorrhage. (05 Mar 2000) |
| Duret's lesion | Small haemorrhage(s) in the floor of the fourth ventricle or beneath the aqueduct of Sylvius. (05 Mar 2000) |
| Janeway lesion | One of the stigmata of infectious endocarditis: irregular, erythematous, flat, painless macules on the palms, soles, thenar and hypothenar eminences of the hands, tips of the fingers, and plantar surfaces of the toes; rarely a diffuse rash. In acute endocarditis the lesions may be haemorrhagic or purple. (05 Mar 2000) |
| upper motor neuron lesion | Injury to cerebral descending (corticonuclear) fibres above the brainstem or spinal motor nerve nucleus. Synonym: upper motor neuron lesion. (05 Mar 2000) |
| Lennert's lesion | <tumour> Malignant lymphoma with a high proportion of diffusely scattered epithelioid cells, tonsillar involvement, and an unpredictable course. Synonym: Lennert's lesion. (05 Mar 2000) |
| lesion | <pathology> Any pathological or traumatic discontinuity of tissue or loss of function of a part. Origin: L. Laesio, laedere = to hurt (18 Nov 1997) |
| Lohlein-Baehr lesion | Focal embolic glomerulonephritis occurring in bacterial endocarditis. Synonym: Baehr-Lohlein lesion. (05 Mar 2000) |
| lower motor neuron lesion | Injury to motor cells in the brainstem or spinal cord, or of the axons derived from them. (05 Mar 2000) |
| 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) |