| 영문 | epithelial tumor | 한글 | 상피성종양 |
|---|---|---|---|
| 설명 | 정상 사람의 조직은 체표면을 덮는 역할을 하는 조직과, 주로 발생기의 중배엽에서 분화한 간엽조직에서 유래하는 결합조직, 뼈, 연골, 지방, 근육, 혈관 등의 조직의 두 계통으로 나눌 수 있다. 전자를 상피성 조직, 후자를 비상피성 조직이라 하며 그 각각을 구성하는 세포를 상피성 세포, 비상피세포라 총칭한다. 상피성 세포에서 기원하는 종양이 상피성 종양이며, 근처의 조직으로 침투나 혈류, 림프의 조직을 타고 원거리의 장기로 이동하지 않는 양성종양에는 선종, 유두종 등이 있고 양성과 반대로 근처의 조직으로 침투, 원격장기로 전이하는 악성종양을 모두 통칭하여 암종(carcinoma)이라고 한다. |
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| 영문 | medullary tumor | 한글 | 수질성 종양 |
|---|---|---|---|
| 설명 | 암의 병리학적인 분류중 하나. 여러 기관의 암에서 나타나는데 주로 갑상샘암이나 유방암에서 보인다. |
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| 영문 | benign tumor | 한글 | 양성종양 |
|---|---|---|---|
| 설명 | 발육속도가 완만하여 성장에 한계가 있고, 주위와의 경계가 명확하며, 다른 조직으로 퍼지지 않으며, 침윤이나 전이를 일으키지 아니하는 종양. 섬유종이나 지방종 따위가 전형적인 예이다. 양성종양은 종양이 존재한다고 해도 1차적으로 숙주의 생명을 위협하는 일은 없다. 양성종양의 발육형식은 주위의 조직간에 왕래하는 일이 없이 주위의 조직을 밀어내며 증식한다. 발육속도는 완만하며 전이하거나 절제 후 재발하는 일이 극히 드물다. 종양성분은 변이체이긴 하지만 성숙한 정상세포와 거의 다른 것이 없다. 전신에 대한 영향은 악성종양의 경우 어느 정도 발육했을 때 전신의 영양상태가 손상되어 카켁시아가 되지만 양성종양의 경우 이런 일은 거의 없다. 양성종양과 악성종양의 성상의 차이에 엄밀한 경계는 없고, 경계경변으로 보이는 종양도 있다. |
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| 영문 | Wilms' tumor | 한글 | 윌름즈종양 |
|---|---|---|---|
| 설명 | 콩팥에서 발생하는 악성종양으로 소아에서 자주 발생한다. 흔히 소아에서 복부내종양을 발견시 중앙선을 넘어서면 신경모세포종이고, 중앙선을 넘지 않으면 윌름즈종양을 의심할 만큼 중요하고 흔한 종양이다. 대개 증상은 없는 편이며, 주로 아기의 목욕을 시켜주다가 우연히 발견된 복부내종괴 때문에 병원을 찾게 된다. 진단시 컴퓨터단층촬영으로 주위의 전이가 없는지를 확인해야 하며, 전이가 없으면 항암화학요법, 방사선치료요법, 그리고 수술요법의 병합요법에 의한 치료효과가 높다. |
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| 영문 | mucinous tumor | 한글 | 점액종양 |
|---|---|---|---|
| 설명 | 점액으로 구성된 종양을 말하는데 주로 여성의 난소에서 발생하는 낭성(물주머니같은 종양을 말함) 종양에서 많이 볼 수 있다. |
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| LF | labile factor; lactoferrin; laryngofissure; Lassa fever; latex fixation; left foot; left forearm; le... |
|---|---|
| LFD | lactose-free diet; large for date [fetus]; late fetal death; lateral facial dysplasia; least fatal d... |
| LFT | latex fixation test; latex flocculation test; left fronto-transverse [fetal position]; liver functio... |
| AFP | Alpha(α) Feto-Protein [HP 1826, 1858, 1859, 2265] ; Oncofetal Antigens &nbs... |
| BT | base of tongue; bedtime; bitemporal; bitrochanteric; bladder tumor; Blalock-Taussig [shunt]; bleedin... |
| ear, low-set | A minor anomaly involving an ear situated down below its normal location. Technically, the ear is low-set when the helix (of the ear) meets the cranium at a level below that of a horizontal plane through both inner canthi (the inside corners of the eyes). The presence of 2 or more minor anomalies in a child increases the probability that the child has a major malformation. (12 Dec 1998) |
|---|---|
| kininogen, low-molecular-weight | A protein, molecular weight 50 kD, located in various normal tissues. Upon cleavage by kallikrein or other kallikreins, it forms kallidin. Kallidin, in turn, is converted into bradykinin. (12 Dec 1998) |
| low | 1. Occupying an inferior position or place; not high or elevated; depressed in comparison with something else; as, low ground; a low flight. 2. Not rising to the usual height; as, a man of low stature; a low fence. 3. Near the horizon; as, the sun is low at four o'clock in winter, and six in summer. 4. Sunk to the farthest ebb of the tide; as, low tide. 5. Beneath the usual or remunerative rate or amount, or the ordinary value; moderate; cheap; as, the low price of corn; low wages. 6. Not loud; as, a low voice; a low sound. 7. Depressed in the scale of sounds; grave; as, a low pitch; a low note. 8. Made, as a vowel, with a low position of part of the tongue in relation to the palate; as, (m), (all). 9. Near, or not very distant from, the equator; as, in the low northern latitudes. 10. Numerically small; as, a low number. 11. Wanting strength or animation; depressed; dejected; as, low spirits; low in spirits. 12. Depressed in condition; humble in rank; as, men of low condition; the lower classes. "Why but to keep ye low and ignorant ?" (Milton) 13. Mean; vulgar; base; dishonorable; as, a person of low mind; a low trick or stratagem. 14. Not elevated or sublime; not exalted or diction; as, a low comparison. "In comparison of these divine writers, the noblest wits of the heathen world are low and dull." (Felton) 15. Submissive; humble. "Low reverence." 16. Deficient in vital energy; feeble; weak; as, a low pulse; made low by sickness. 17. Moderate; not intense; not inflammatory; as, low heat; a low temperature; a low fever. 18. Smaller than is reasonable or probable; as, a low estimate. 19. Not rich, high seasoned, or nourishing; plain; simple; as, a low diet. Low is often used in the formation of compounds which require no special explanation; as, low-arched, low- browed, low-crowned, low-heeled, low-lying, low-priced, low-roofed, low-toned, low-voiced, and the like. Low Church. See High Church, under High. Low Countries, the Netherlands. Low German, Low Latin, etc. See German, Latin, etc. Low life, humble life. Low milling, a process of making flour from grain by a single grinding and by siftings. Low relief. See Bas-relief. <medicine> Low side window, a contrivance of various forms attached to a boiler for giving warning when the water is low. Low water mark, that part of the shore to which the waters recede when the tide is the lowest. Low wine, a liquor containing about 20 percent of alcohol, produced by the first distillation of wash; the first run of the still; often in the plural. Origin: OE. Low, louh, lah, Icel. Lagr; akin to Sw. Lag, Dan. Lav, D. Laag, and E. Lie. See Lie to be prostrate. 1. In a low position or manner; not aloft; not on high; near the ground. 2. Under the usual price; at a moderate price; cheaply; as, he sold his wheat low. 3. In a low mean condition; humbly; meanly. 4. In time approaching our own. "In that part of the world which was first inhabited, even as low down as Abraham's time, they wandered with their flocks and herds." (Locke) 5. With a low voice or sound; not loudly; gently; as, to speak low. "The . . . Odourous wind Breathes low between the sunset and the moon." (Tennyson) 6. With a low musical pitch or tone. "Can sing both high and low." (Shak) 7. In subjection, poverty, or disgrace; as, to be brought low by oppression, by want, or by vice. 8. <astronomy> In a path near the equator, so that the declination is small, or near the horizon, so that the altitude is small; said of the heavenly bodies with reference to the diurnal revolution; as, the moon runs low, that is, is comparatively near the horizon when on or near the meridian. Source: Websters Dictionary (01 Mar 1998) |
| low-activation materials | <radiobiology> In fission reactors, one is forced to deal with the radioactive byproducts of the fission process, but in fusion reactors one generally has a choice of what materials to expose to neutrons produced by the fusion process. A major problem for fusion reactors is developing materials (such as for the reactor vacuum vessel structure) which can be exposed to high levels of neutron bombardment without becoming permanently radioactive. Candidate structural materials which have relatively low induced radiactivation (generally relative to stainless steel) are known as low-activation materials, these include titanium, vanadium, and silicon-carbide. (09 Oct 1997) |
| low affinity platelet factor IV | Cytokine, produced from platelet basic protein, that acts as a growth factor. (18 Nov 1997) |
| low aspect ratio | <physics> An aspect ratio for a torus that is small (minor radius is almost as big as major radius). There are many fusion devices which are designed to have a low aspect ratio. Such devices look more like tractor tires than bicycle tires, as toruses go. There are reasons to believe that low aspect ratio devices will offer some advantages for a fusion reactor. Usually, ease of theoretical and/or numerical analysis is not one of these advantages. (16 Mar 1998) |
| low back pain | A continuous pain in the lower back or lumbar region. (12 Dec 1998) |
| low-calorie diet | A diet of 1,200 calories or less per day. (05 Mar 2000) |
| low convex | The segment of a sphere of long radius. (05 Mar 2000) |
| low delirium | Delirium in which there is little excitement, either mental or motor, the ideas being confused and incoherent, but following each other slowly. (05 Mar 2000) |
| low density lipoprotein | <biochemistry> A lipoprotein substances (combination of a fat and a protein) which acts as a carrier for cholesterol and fats in the bloodstream. High levels of low density lipoprotein are considered a positive risk factor for the development of coronary artery disease. Less than 130 mg/dl is desirable, 130 to 159 mg/dl is borderline high, over 160 is considered high. Acronym: LDL (10 Jan 1998) |
| low density lipoprotein receptor | <biochemistry> A cell surface protein that mediates the endocytosis of low density lipoprotein by cells. Genetic defects in low density lipoprotein receptors lead to abnormal serum levels of low density lipoprotein and hypercholesterolaemia. (16 Mar 1998) |
| low-density lipoprotein receptors | Receptors on the surface of cells, especially liver cells, which bind to low density lipoprotein and promote clearance of LDL from the plasma. (05 Mar 2000) |
| low-egg-passage vaccine | See: rabies vaccine, Flury strain egg-passage. (05 Mar 2000) |
| low-fat diet | A diet containing minimal amounts of fat.Diets containing low amounts of fat and cholesterol are designed to reduce the risk of heart disease and, in some cases, cancer. Dozens of such diets have been promulgated, both by medical and lay advisors. Their popularity can be attributed in part to clinical studies that have, since the 1980s, revealed, on the one hand, the hazards of eating high-fat, high-cholesterol foods and, on the other, the benefits of ingesting less saturated fat and LDL (low density lipoprotein) cholesterol. Although coronary deaths have been reduced by roughly 30% since 1970, the aim of health officials is to further reduce heart attack rates. The average cholesterol level among adult Americans has fallen from 213 to 205 mg/dl since 1978. However, the National Cholesterol Education Program recommends that individuals maintain a total cholesterol level of no more than 200 mg/dl, with LDL at less than 130 mg/dl and HDL (high density lipoprotein) around 60 mg/dl. About one-half of American adults exceed those recommendations. Low-fat, low-cholesterol diets are rich in whole grains, fresh fruits and vegetables, and legumes, and limit or exclude consumption of processed oils, dairy products, nuts and seeds, and meats. See atherosclerosis, free radicals. (05 Mar 2000) |