| latah | One of the pathological startle syndromes. A culture bound disorder characterised by an exaggerated physical response to being startled or to unexpected suggestion, the subjects involuntarily uttering cries or executing movements in response to command or in imitation of what they hear or see in others. See: jumping disease. Origin: Malay, ticklish (05 Mar 2000) |
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| Latarget | Andre, French anatomist, 1877-1947. See: Latarget's nerve, Latarget's vein. (05 Mar 2000) |
| Latarget's nerve | <anatomy, nerve> Terminal branch of anterior vagal trunk which runs along lesser curvature of the stomach to within a few centimeters of the gastroduodenal junction, but apparently never reaching the pyloric sphincter. Synonym: superior hypogastric plexus. (05 Mar 2000) |
| Latarget's vein | <anatomy, vein> A tributary of the right gastric vein that passes anterior to the pylorus at its junction with the duodenum. Synonym: vena prepylorica, Latarget's vein, Mayo's vein. (05 Mar 2000) |
| late apical systolic murmur | A murmur previously considered benign, or even extracardiac, with a possible relationship to pericardial disease; it often represents mitral insufficiency, often localised and of moderate severity but with propensity for developing bacterial endocarditis, and is frequently associated with systolic click and mitral prolapse (Barlow syndrome; a balloon or billowing mitral valve leaflet) often producing a click, murmur, or both, as it prolapses during systole into the left atrium. (05 Mar 2000) |
| late benign syphilis | Late syphilis, manifested by serologic evidence of infection, but without any clinical manifestations. (05 Mar 2000) |
| late cyanosis | cyanose tardive |
| late deceleration | Any transient foetal bradycardia, the nadir of which occurs after the peak of the uterine contraction. (05 Mar 2000) |
| late diastole | That part of diastole immediately preceding systole. Synonym: late diastole. (05 Mar 2000) |
| late diastolic murmur | A murmur heard at the end of ventricular diastole (during atrial systole if in sinus rhythm), usually due to obstruction at one of the atrioventricular orifices. Synonym: atriosystolic murmur, late diastolic murmur. (05 Mar 2000) |
| late effect | Side effects of chemotherapy and/or radiotherapy which only become apparent with long-term monitoring of the patient over a period of years. These are of particular concern in patients below the age of puberty. (18 Nov 1997) |
| late gene | <genetics, molecular biology> Gene expressed relatively late after infection of a host cell by a virus, usually structural proteins for the viral coat. (18 Nov 1997) |
| late latent syphilis | Usually infectious in pregnant women only, who may pass the infection on to the foetus. (05 Mar 2000) |
| late luteal phase dysphoric disorder | <syndrome> A combination of emotional, physical, psychological, and mood disturbances that occur after ovulation and normally end with the onset of the menstrual flow. (12 Dec 1998) |
| late reaction | A local or generalised response that begins 24 to 48 hours after exposure to an antigen. See: cell-mediated reaction. Synonym: contact hypersensitivity, delayed hypersensitivity, late reaction, tuberculin-type hypersensitivity. (05 Mar 2000) |