| TA | alkaline tuberculin; arterial tension; axillary temperature; tactile afferent; Takayasu arteritis; t... |
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| PTA | parallel tubular arrays; parathyroid adenoma; percutaneous transluminal angioplasty; peroxidase-labe... |
| TAPVC | Total Anomalous Pulmonary Venous Connection; ÀüÆóÁ¤¸Æ ¿¬°áÀÌ»ó = Transposition of the Pulmon... |
| TGA | Transposition of Great Arteries |
| ACT | achievement through counseling and treatment; actin; actinomycin; activated clotting time; advanced ... |
| TA | Truncus arteriosus |
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| PTA | persistent truncus arteriosus |
| CCTGA | Congenitally corrected transposition of the great arteries |
| CTGA | Corrected Transposition of the Great Arteries |
| D-TGA | D-transposition of the great arteries |
| truncus vs. Transposition | <radiology> May look very similar, increased PBF and cyanosis (admixture), distinguishing feature: aortic arch, right aortic arch in 30% of TA vs. Only 5% of TGV (12 Dec 1998) |
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| bacterial transposition | <molecular biology> A short sequence of DNA (known as a transposon) which can change location on the bacterial genome (the sum total of all of the bacterium's DNA) and contains genes which code for proteins that enable it to change location. They are useful because they can also contain genes for other things, like antibiotic resistance, and because they can be introduced into a bacterial genome by a researcher. (09 Oct 1997) |
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| penoscrotal transposition | Deficient ventral penile shaft skin which is buried in scrotum or tethered to scrotal midline by a fold or web of skin. The urethra and erectile bodies are usually normal. Synonym: penis palmatus, penoscrotal transposition. (05 Mar 2000) |
| corrected transposition of the great vessels | Anatomically or physiologically corrected malposition of the great arteries. In anatomically corrected transposition, they arise from the correct ventricles but have an abnormal relation to each other (actually a malposition rather than a transposition.) In physiologically or functionally corrected transposition, the aorta arises from a systemic ventricle that has the morphologic characteristics of a right ventricle, and the pulmonary artery arises from a "venous" ventricle that has the morphologic characteristics of a left ventricle. (05 Mar 2000) |
| transposition | <molecular biology> The movement of a piece of DNA around the chromosome (from one gene to another part of the genome), usually through the function of a transposable element. (09 Oct 1997) |
| transposition of arterial stems | Congenital malformation in which the aorta arises from the morphologic right ventricle and the pulmonary artery from the morphologic left ventricle resulting in two separate and parallel circulations. The condition is lethal unless some communication exists between the systemic and pulmonic circulation after birth; otherwise, unoxygenated venous blood inappropriately enters the systemic circulation, and oxygenated pulmonary venous blood is inappropriately directed to the pulmonary circulation. The life sustaining communication may be an intra-atrial passage or a patent ductus arteriosus. Synonym: transposition of arterial stems. (05 Mar 2000) |
| transposition of great vessels | <embryology> A congenital cardiovascular malformation in which the aorta arises entirely from the right ventricle and the pulmonary artery from the left ventricle, so that the venous return from the peripheral circulation is recirculated by the right ventricle via the aorta to the systemic circulation without being oxygenated in the lungs. There is an intracardiac shunt, increased pulmonary vascularity, cyanosis. The chest X-ray shows that the heart size may be normal at birth, but it gradually enlarges with a globular or egg-on-its-side appearance. (27 Jun 1999) |
| transposition of the great vessels | Congenital malformation in which the aorta arises from the morphologic right ventricle and the pulmonary artery from the morphologic left ventricle resulting in two separate and parallel circulations. The condition is lethal unless some communication exists between the systemic and pulmonic circulation after birth; otherwise, unoxygenated venous blood inappropriately enters the systemic circulation, and oxygenated pulmonary venous blood is inappropriately directed to the pulmonary circulation. The life sustaining communication may be an intra-atrial passage or a patent ductus arteriosus. Synonym: transposition of arterial stems. (05 Mar 2000) |
| persistent truncus arteriosus | A congenital cardiovascular deformity resulting from failure of development of the spiral septum and consisting of a common arterial trunk opening out of both ventricles, the pulmonary arteries being given off from the ascending common trunk. (05 Mar 2000) |
| truncus | <zoology> The thorax of an insect. See Trunk. Origin: L. Source: Websters Dictionary (01 Mar 1998) |
| truncus arteriosus | <radiology> Right aortic arch (30-50%), VSD always immediately beneaath common truncal valve, waterfall or hilar comma sign (types II and III) TYPE, I short main pulmonary artery arises from left post-lat aspect, II pulmonary arteries arise separately from left post-lat aspect, III each pulmonary artery arises from lateral aspects, IV pulmonary arteries arise from dorsal aorta (pseudotruncus), probably tetralogy of Fallot with pulmonary atresia (12 Dec 1998) |
| truncus arteriosus communis | <radiology> Right aortic arch (30-50%), VSD always immediately beneaath common truncal valve, waterfall or hilar comma sign (types II and III) TYPE, I short main pulmonary artery arises from left post-lat aspect, II pulmonary arteries arise separately from left post-lat aspect, III each pulmonary artery arises from lateral aspects, IV pulmonary arteries arise from dorsal aorta (pseudotruncus), probably tetralogy of Fallot with pulmonary atresia (12 Dec 1998) |
| truncus arteriosus, persistent | A congenital anomaly resulting from the failure of the aorticopulmonary system to develop and divide the truncus arteriosus into the aorta and the pulmonary trunk. (12 Dec 1998) |
| truncus brachiocephalicus | The first and largest artery branching from the aortic arch. It distributes blood to the right side of the head and neck and to the right arm. (12 Dec 1998) |
| truncus bronchiomediastinalis | A lymphatic vessel arising from the union of the efferent lymphatics from the tracheo-bronchial and mediastinal nodes on either side. On the left side, it may be largely replaced by direct drainage into the thoracic duct. Synonym: truncus bronchiomediastinalis. (05 Mar 2000) |
| truncus coeliacus | Origin, abdominal aorta just below diaphragm; branches, left gastric, common hepatic, splenic. Synonym: truncus coeliacus, arteria coeliaca, coeliac artery, coeliac axis, Haller's tripod. (05 Mar 2000) |
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