| OC | obstetrical conjugate; occlusocervical; office call; on call; only child; optic chiasma; oral contra... |
|---|---|
| OCA | oculocutaneous albinism; olivopontocerebellar atrophy; oral contraceptive agent |
| OCC | object-centered coordinate [method]; oral cholecystography |
| OCG | omnicardiogram; oral cholecystogram |
| OCH | oral contraceptive hormone |
| liver regeneration | Repair or renewal of hepatic tissue. (12 Dec 1998) |
|---|---|
| liver scan | <investigation> A way of visualising the liver by injecting into the bloodstream a trace dose of a radioactive substance which helps visualize the organ during X-ray. (09 Oct 1997) |
| liver-shod clamp | A clamp with jaws covered by cloth to prevent injury to structures such as bowel when clamp is closed. (05 Mar 2000) |
| liver-spleen scan | <radiology> Tc-99m sulfur colloid or albumin colloid, particles less than 1 m, dose = 4-8 mCi Distribution, liver 85%, spleen 10%, bone marrow 5% Findings, liver: hot / cold, spleen: hot / cold (12 Dec 1998) |
| liver spot | A variably pigmented lentigo occurring on exposed skin of older Caucasians. Synonym: liver spot, solar lentigo. (05 Mar 2000) |
| liver spots | A skin disorder seen with aging (or sun exposure) where there are flat patches of increased pigmentation on the skin. They are nonserious, benign and generally more important cosmetically. The most commonly appear on sun exposed areas such as the forehead and the back of the hands. Avoidance of the sun and the use of a sunscreen (SPF of 15) can reduce the incidence of these lesions. Creams and lotions are available which bleach the skin. Cryotherapy can be used in some cases. (27 Sep 1997) |
| liver starch | <biochemistry> Branched polymer of D glucose (mostly _(1-4) linked, but some _(1-6) at branch points). Size range very variable, up to 10exp5 glucose units. Major short term storage polymer of animal cells and is particularly abundant in the liver and to a lesser extent in muscle. In the electron microscope glycogen has a characteristic asterisk or star appearance. (18 Nov 1997) |
| liver transplant | <procedure, surgery> Surgery to replace a disease liver with a healthy one from a donor. This procedure is technically quite difficult, since both vessels and biliary tract must be reattached to the new liver. most often indicated in those with long-term chronic hepatitis or congenital liver defects. Not usually performed in the situation of alcoholic cirrhosis or primary biliary cirrhosis. (14 Oct 1997) |
| liver transplantation | The transference of a part of or an entire liver from one human or animal to another. (12 Dec 1998) |
| ajowan oil | A volatile oil distilled from the fruit of Carum copticum, one of the sources of thymol; a carminative, aromatic, and expectorant. Synonym: ptychotis oil. (05 Mar 2000) |
| allspice oil | pimenta oil |
| almond oil | A fixed oil expressed from sweet almonds, the kernels of varieties of Prunus amygdalus; used in ointments. Bitter almond oil, a volatile oil from the dried ripe kernels of bitter almonds and from other kernels containing amygdalin; it contains between 2 and 4% of hydrocyanic acid and 95% of benzaldehyde. (05 Mar 2000) |
| apple oil | Isoamyl isovalerate;used as a sedative; formerly used in the treatment of gallstones because of its solvent action on cholesterol. Synonym: apple oil. (05 Mar 2000) |
| apricot kernel oil | See: persic oil. (05 Mar 2000) |
| arachis oil | Oil extracted from the kernels of one or more cultivated varieties of Arachis hypogaea (family Leguminosae); used as a solvent for intramuscular injections and in the preparation of foods. Synonym: arachis oil. (05 Mar 2000) |